Sunday

April 20, 2014

April 20, 2014

Number of results: 4,901

**Early Child Ed.**

Here's the question: "2. Which one of the following statements does NOT describe one of the benefits offered by a traditional playground?" A) describes a benefit because children practice manipulative skills on a playground. This cannot be the answer. B) states that children ...
*Tuesday, November 27, 2007 at 9:36pm by Ms. Sue*

**8th grade math**

A triangular prism has a surface area of 550 square feet, a length of 15 feet, a height of 10 feet, and a side of 5 feet. Find the width of the triangular prism.
*Monday, May 21, 2012 at 6:12pm by big dad *

**Geometry/Algebra**

Remember that in a parallelogram , opposite angles must be equal so solve 5x-2 = 40-x then sub back in to find the actual angles. To find the other pair of opposite angles, remember that adjacent angles in your figure have to add up to 180° let me know what you get.
*Wednesday, June 13, 2012 at 7:17am by Reiny*

**math**

two lines intersect in a plane and form four angles. one of the angles formed by this intersection is a 53degree angle. What are the measures of the other three angles? explain your answer
*Wednesday, March 3, 2010 at 6:52pm by zay*

**Algebra**

what solid has 2 bases that are triangles and 3 lateral surfaces that are rectangles a- triangular pyramid b- rectangular prism c- triangular prism d- rectangular pyramid my answer is C
*Tuesday, March 4, 2014 at 3:37pm by Steve*

**geometry**

triangular prism ---> base is a triangle pentagonal prism ---> base is a pentagon So clearly you can't use the triangular prism formula for this question , but you an generalize it looking what it describes. I don't know what they gave you, but the surface area of a ...
*Saturday, March 9, 2013 at 8:16pm by Reiny*

**MATHS - AREA**

The wall around a playground is 410m. If one wall along the length is 80m long, what is the length of the wall along the breadth? What is the area of the playground?
*Tuesday, April 15, 2014 at 8:14am by RIYA*

**Geometry**

Two straight lengths of wire are placed on the ground, forming vertical angles. If the measure of one of the angles formed is 72°, what are the measures of the other three angles? Explain your answer
*Wednesday, September 12, 2012 at 5:42pm by Angelica*

**math help**

Think of a regular hexagon. All the angles are 120°. Now, think of pressing down on the top, keeping the top and bottom sides parallel. The two side angles will decrease, and the other four angles will increase. Stop when the side angles have become acute.
*Wednesday, March 19, 2014 at 3:35pm by Steve*

**Math**

Sandra used a triangular prism 10 cm long to refract light into the spectrum. Each triangular end had an area of 3.5 cm squared and sides 3 cm, 3 cm and 2.6 cm. What was the surface of the prism?
*Thursday, February 7, 2013 at 9:47pm by Monica*

**geometry!!!**

Do you mean the largest "triangular number" ? Triangular numbers are 1 , 3, 6, 10, 15, 21 , ....., n(n+1)/2 so n(n+1)/2 ≤ 1000 n^2 + n ≤ 2000 n^2 + n - 2000 ≤ 0 let's solve the equation n = (-1 ± √8001)/2 = appr 44.2 or a silly negative if n = 44 , term...
*Monday, February 18, 2013 at 12:56am by Reiny*

**vertex angle**

The three angles add to 180 degrees. Also , the two base angles of the isoscele triangle are equal, .. Set those base angles equal, and solve for x. Put that value of x into the given, and compute the base angles. The third angle will be the amount to add to the two base ...
*Thursday, August 16, 2007 at 10:03am by Anonymous*

**optics**

There is no such word as "reflaction". The angles of incidence and reflection are always equal. If you are talking about refraction angles, they are NOT equal to incidence angles. Your question does not make sense as you have written it. If the angles af indidence are equal ...
*Monday, March 5, 2012 at 6:36am by drwls*

**Math**

Which of the following could NOT represent the intersection of a plane and a triangular prism? A. a triangular prism B.a triangle C. a rectangle D. a point I had D, a point because if you cut a triangle in half you can not get a point out of it. If this is wrong can you ...
*Monday, April 1, 2013 at 10:18pm by B6*

**math**

Which of the following could NOT represent the intersection of a plane and a triangular prism? A. a triangular prism B.a triangle C. a rectangle D. a point I had D, a point because if you cut a triangle in half you can not get a point out of it. If this is wrong can you ...
*Tuesday, April 2, 2013 at 8:43am by B6*

**MATHS-traingles**

one of the exterior angles of a triangle is 126 degree and the interior opposite angles are in the ratio 2:4. Find the angles of the triangle.
*Saturday, March 2, 2013 at 1:36pm by anchal*

**Math**

Which statement is always true about a parallelogram? A. It has 4 congruent sides B. It has 4 right angles. C. It has opposite angles that are congruent. D. The sum of any 3 angles is 360 Is it a?
*Thursday, April 7, 2011 at 10:35pm by Mason*

**math**

A small correction: The sum of the interior angles of an n-gon is (n-2)*180. The interior angles and the exterior angles always add up to 360.
*Thursday, April 12, 2012 at 9:31pm by Steve*

**math**

smallest of two triangular numbers whose sum and difference are also triangular numbers My guess would be 15. 21 - 15 = 6 and 15 + 21 = 36.
*Friday, May 25, 2007 at 9:37am by Amanda*

**geometry**

For an n-gon, the sum of the interior angles is 180(n-2) The sum of the central angles and the exterior angles is just 360 degrees
*Friday, November 25, 2011 at 11:27am by Steve*

**geometry**

a 33-gon has a sum of angles = 31 straight angles = 62 right-angles. 2n-3=33 n=18
*Tuesday, May 8, 2012 at 12:22pm by Steve*

**quadrilaterals**

The sum of the angles = 360 paralleograms have pairs of equal angles. You have 110 degrees so far. Now can you find the other two angles?
*Wednesday, February 20, 2013 at 9:00pm by JJ*

**geometry**

are the angles of x and 5.5y opposite angles or adjacent angles? What do you mean by "the triangle?" Is there a triangle drawn inside the parallelogram?
*Monday, December 16, 2013 at 10:26pm by carol*

**math**

Among angles formed by intersection of two lines, adjacent angles are supplementary, and vertically opposite angles are equal. Thus if one of the angles is 53°, the two adjacent angles are (180-53)°, and the angle vertically opposite is also 53°.
*Wednesday, March 3, 2010 at 6:52pm by MathMate*

**Math**

7.Which statement about polygons is not true A.If all the angles of a triangle are congruent then the measure of each angle is 60 degrees B.If a triangle has a right angle then both of the other angles are acute C.If a figure is a rectangle then the sum of the 2 measures of ...
*Thursday, April 18, 2013 at 7:22pm by Jerald*

**geometry**

Two angles of a quadrilateral measure 210° and 100°. The other two angles are in a ratio of 2:3. What are the measures of those two angles? I know the four angles add to 360 deg. So the two unknowns are 50 deg together. 20 and 30 deg angles would give a ratio of 2:3, but what ...
*Thursday, April 21, 2011 at 4:59pm by Leilani*

**Math**

a^2 = b^2 + c^2 - 2bc cosA b^2 = a^2 + c^2 - 2ac cosB c^2 = b^2 + a^2 - 2ba cosC where a, b, and c are the sides of the triangle, and A, B, C are the angles opposite the sides. Plug a, b, c = 3, 5, 7 into these equations and solve for the angles A, B, C. The smallest of these ...
*Wednesday, October 17, 2012 at 2:03pm by Jennifer*

**Grade 8 Geometry**

In a triangular prism V=(1/3)x(Base Area)x(Height) To find Base Area in the case of triangular prism we use the formula for area of a triangle that is A=(1/2)x(L+W)
*Saturday, May 15, 2010 at 12:22pm by Joe*

**math**

Triangular numbers are the numbers you get when you arange items in a triangular shape, each row having one more than the row above it. Top row: 1 Next row: 2 ... So, the nth triangular number is 1+2+3+...+n = n(n+1)/2 Similarly, square numbers are what you get when you ...
*Wednesday, November 2, 2011 at 1:41pm by Steve*

**algebra**

A shopkeeper is making a triangular sign for his store front, but he must keep the sign under 20 square feet to adhere to the zoning laws. If the base of the sign is 20 feet, what is the maximum height of the triangular sign?
*Thursday, October 28, 2010 at 7:06am by denise*

**geometry**

Supplementary angles are angles that add up to 180°. So if the ratio of the two angles are 2:7, or 2x : 7x, then we have 2x+7x=180 Solve for x and evaluate 2x and 7x to get the measure of the angles.
*Friday, March 19, 2010 at 11:30pm by MathMate*

**geometery**

does a rhombus has opposite angles that are supplementary yep they do..a rhombus' angles are all equivalent..so 360/4angles= 90 degrees each so if you add 90 and 90 = 180 and thus suplementary (180 deg) What do you mean by "opposite angles" ? The angles on the opposite sides ...
*Friday, August 3, 2007 at 1:46pm by Anonymous*

**chemistry**

what is the molecular geometry and bond angles of CF2Cl2? Is there any reason to suspect this won't be tetrahedral with bond angles of 109.5? The difference in electronegativity between F and Cl would be expected to alter the angles somewhat.
*Monday, February 26, 2007 at 9:46am by karla*

**Foreign languages**

We are looking for suitable accommodation in south-west Ireland. (on seafront, near Cork) Any ideas? Can you check these two sentences, Writeacher? 1) Does your hotel offer both a kids’club and a playground where my child can spend time outside? 2) It is important that the ...
*Tuesday, July 10, 2012 at 11:32am by John*

**Math**

David bought 5 dozen pieces of candy. He filled 9 bags with 6 pieces of candy each for his friends. After giving his friends the bags of candy, how many pieces of candy does he have left? 6 A family installed a triangular piece of glass in a rectangular wooden door of their ...
*Tuesday, June 4, 2013 at 6:33pm by Jerald*

**maths**

From the centre of a polygon of n-sides (n-gon), draw rays towards the n-vertices thus forming n triangles. The sum of internal angles of the n triangles equals 180n°. This sum also equals the sum of the n interior angles plus the angles around the central point, 360°...
*Saturday, June 4, 2011 at 11:15am by MathMate*

**geometry**

a tree on a 30degree slope grows straight up .what are the measure of the greatest and smallest angles the tree make with the hill? you discovered that if a pair of angle is a linear pair ,the the angles are supplementary. does that mean that all supplementary angles form a ...
*Wednesday, November 3, 2010 at 6:24pm by 000*

**Math**

Anita says the plus sign + forms 2 pairs of vetical angles. Charles says it forms 2 pairs of congruent angles? Who is correct, and why? Wouldn't it be both, because there are 2 pairs of opposite angles with the same measure, and 4 congruent angles.
*Tuesday, March 1, 2011 at 5:48pm by Annabel*

**physics II**

sUPPOSE YOU HAVE A square coil and a triangular coil each have sides of length L. The triangular coil has twice as many turns as the square coil. If a the same current is sent through each coil, when the coils are placed in the same uniform magnetic field making an angle of 30...
*Sunday, August 1, 2010 at 4:57pm by manny*

**trig**

Find two standard position primary angles in radians by solving for the unknown. "Primary angles" are those angles which exist between 0 and 2pi. As usual, use exact values in your calculations. cotx + 1 = 0
*Monday, April 28, 2008 at 5:59pm by Manny*

**pre-algebra**

Use an inequality to solve the problem. A shopkeeper is making a triangular sign for his store front, but he must keep the sign under 20 square feet to adhere to the zoning laws. If the base of the sign is 20 feet, what is the maximum height of the triangular sign?
*Tuesday, June 14, 2011 at 3:39pm by cody*

**math**

a quadrilateral has two angles that measure 88 and 62. the other two angles are in a ratio of 16:19. what are the measures of those two angles?
*Monday, January 27, 2014 at 8:51pm by Terry*

**math**

The playground at molly's school is in the shape of an equilateral triangle.The playground at david's school is in the shape of an acute triangle. could molly and david go to the same school? Explain.
*Sunday, November 6, 2011 at 11:57am by Johnny*

**geometry**

An isosceles triangle has two identical sides. therefore, it also has two equivalent angles (i.e. base angles). Know: -a triangle has three angles -the three angles total 180 degrees -if one of its base angles is 58, so is the other base angle x + 58 + 58 = 180 where x = the ...
*Tuesday, September 14, 2010 at 2:01pm by TutorCat*

**chemistry**

How do the bond angles in the six atom ring (created when ASA binds to Fe3+) differ from the bond angles of the six atom benzene ring? are there even any tetrahedral angles in here because the angles i found are 123.66,124.12,119.15,114.71,89.86. Some are too big for 109 degrees
*Thursday, January 21, 2010 at 1:00am by eng*

**Maths**

a=9: 999 a=8: 888 889 899 a=7: 777 778 779 788 789 799 a=6: 666 667 668 669 677 678 679 688 689 699 Looks like The number of entries for a=10-9 is the nth triangular number Sum of 1st n triangular numbers is n(n+1)(n+2)/6 for n=9 that is 9*10*11/6 = 165
*Sunday, June 9, 2013 at 10:51am by Steve*

**Math (dont want ans just help figuring this out)**

Length of one Total # of # of side of pattern triangular white (in cm) Shapes used triang- to make pattern ular shapes used 2 4 3 3 9 6 4 16 10 ? ? ? 6 ? ? ? ? ? ? ? ? 20 ? ? Number of gray triangular shapes used 1, 3,6,? ? ? ? ?
*Thursday, June 25, 2009 at 9:39am by Keira*

**English**

On the playground, there are two fathers and three kids. There is a slide at the playground on which a boy is sliding upside down, and his father is catching him. The other father is holding a girl by her left hand. The other girl is on his back, and the father is holding her ...
*Monday, November 4, 2013 at 6:14am by Writeacher*

**Maths**

Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel. The diagonals bisect each other, but are different lengths. The diagonals do not meet at right angles. Angles are not right angles. Please could someone ...
*Tuesday, April 7, 2009 at 2:07pm by Casey-Jo*

**math**

four angles are put together, forming a straight angle. two of the angles are the same size. the other two angles are also the same size but different from the other two. If one of the angles is 40 degrees, what are the measures of the other three? please explain
*Saturday, October 13, 2012 at 1:42am by kcool*

**GEOMETRY (SA oftriangular pyramid)**

Lateral surface area =perimeter of base * apothem /2 =3b*s/2 (for a regular pyramid with a triangular base) Area of triangular base with side b =(√3)*b/2*(b/2) =(√3)b²/4
*Sunday, July 14, 2013 at 7:32am by MathMate*

**Maths**

The question says: Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel. The diagonals bisect each other, but are different lengths. The diagonals do not meet at right angles. Angles are not right angles. Please ...
*Wednesday, April 15, 2009 at 9:22am by Bethany*

**math**

Since this is a math question, I am wondering if you meant to write the word "angle". The Tagalog word "angal" is not a math topic. Angles are formed where two straight lines come together. If the lines interesect, four angles are formed. Angles are formed at the corners of a ...
*Friday, January 8, 2010 at 12:13pm by drwls*

**trig**

Find two standard position primary angles in radians by solving for the unknown. "Primary angles" are those angles which exist between 0 and 2pi. As usual, use exact values in your calculations. cosx - 2cos^2x = 0
*Monday, April 28, 2008 at 6:00pm by Manny*

**math**

is this correct? Determine the surface area of the right triangular prism shown below. Round all measurements to one decimal place. 3.0*3.0=9.0*2=18 8.0*3.0=24 3.0*3.0=9 the surface area of this triangular prism equals to 18+24+9= 51
*Tuesday, December 10, 2013 at 9:22pm by anonymous00000*

**Geometry**

The sum of the angles of a triangle must be 180 degrees. If two angles are 90 degrees, the third angle must be zero. You need three non-zero angles to make a triangle. Therefore a triangle cannot have two right angles. QED
*Thursday, November 18, 2010 at 6:48pm by drwls*

**Story problem heellp**

The difference of two complementary angles is 18. What is the measure if the two angles Hint complementary angles sum to 90 degrees
*Monday, February 17, 2014 at 9:14am by Taylor*

**Early Child Ed.**

I have a couple of questions that I need help on: 1. Because playground structures are static,children's imaginative play on them is: A) unlimited B) limited C) enhanced D) dynamic 2. Which one of the following statements does NOT describe one of the benefits offered by a ...
*Tuesday, November 27, 2007 at 9:36pm by Ms.Sue-- this is for you*

**Geometry**

If the measures of the exterior angles of the acute angles of a right triangle are (6x+23) and (4x+17), find the measures of the acute angles.
*Wednesday, October 5, 2011 at 9:14pm by Rosa*

**math**

Your question makes no sense angles are not measured in inches. did you mean "A triangle has a side 36 in, and 2 angles of 12º and 8º "? Is the given side contained between the two angles? Please restate your question properly.
*Wednesday, April 16, 2008 at 9:54pm by Reiny*

**Geometry**

I see two right-angled triangles in which opposite angles are also equal. So if two angles of one triangle are equal to two angles of another triangle then the third angle pair must also be equal. "sum of angles in a triangle theorem"
*Tuesday, August 18, 2009 at 7:22pm by Reiny*

**math**

A triangular pyramid has a triangle base of 24 cm, triangle height of 16 cm, and a pyramid height of 14 cm. what is the volume of triangular prism.
*Sunday, February 12, 2012 at 11:16am by Hanna*

**Geometry**

I assume you are working with a quadrilateral ABCD in which angles BAD and BCD are right angles. Since the four interior angles of a quadrilateral add up to 360°, therefore the remaining angles add up to (360-90-90)=180°. Can you figure out the fourth angle now?
*Friday, February 25, 2011 at 9:25am by MathMate*

**Math**

Two hundred four students go to after school care at Ming's school. The students are divided into 12 equal groups. Six groups play on the playground while 6 gropus work on their homework. What is the greatest number of students that play on the playground at 1 time? A.17 B.34 ...
*Monday, March 5, 2012 at 4:26pm by Colton*

**math**

The sum of angles AEF and BEF is 180 degrees. Therefore the sum of the bisectors of those angles (MEF and FEN) is 90 degrees. That sum angle (MEN or SET) is one of the angles of quadrilateral SETF. Angles BEF and EFM are equal because of the way EF intercpts parallel lines. ...
*Monday, December 14, 2009 at 10:10am by drwls*

**geometry**

francisco designed a triangular garden surrounded by three square gardens. the area of garden c (the largest garden) is 400 sq. ft. and the length of a side of garden b is 12 ft. find the lengths of all sides of the triangular gardens and find the areas of the gardens. draw a ...
*Thursday, November 18, 2010 at 5:43pm by david*

**geometry**

francisco designed a triangular garden surrounded by three square gardens. the area of garden c (the largest garden) is 400 sq. ft. and the length of a side of garden b is 12 ft. find the lengths of all sides of the triangular gardens and find the areas of the gardens. draw a ...
*Thursday, January 27, 2011 at 11:54am by david*

**geometry**

a playground is 50yd by 50 yd amy walked across the playground from one corner to the opposite corner. how far did she walk? i got : 5000yd #2 a 70 ft ladder is mounted 10 ft above the ground on a fire truck. the bottom of the ladder is 40 ft from the wall of a building. the ...
*Wednesday, May 2, 2012 at 9:21pm by marko*

**maths-area of parallelogram**

There is a man who plotted a land in shape of a trapezium with its parallel sides to be 15m and 5m & height=9m. The Panchayat decided to take a triangular plot of land from one side to construct a school. He reluctantly agrees to this. is this can be possible? Which are the ...
*Wednesday, March 20, 2013 at 2:38pm by anoynomous*

**7th grade math**

Supplementary Angles Two Angles are Supplementary if they add up to 180 degrees. These two angles (140° and 40°) are Supplementary Angles, because they add up to 180°. Notice that together they make a straight angle. -- from the Math is Fun website.
*Wednesday, September 14, 2011 at 10:17pm by Ms. Sue*

**Geometry**

Use the corresponding angles converse: If two lines are cut by a transversal and the corresponding angles are congruent, the lines are parallel. The transversal line is along the side of the ship parallel to the water, and the angles of the oars with the water are all ...
*Wednesday, October 24, 2012 at 4:41pm by Jennifer*

**MATHS**

The sum of angles C and D must be 100 degrees, so that angles A, B, C and D add up to 360 degrees for the quadrilateral. Half of the sum of 100 degrees (which is 50 degrees) must be the sum of the two bisected acute angles C and D. Two of those bisected angles form triangle ...
*Saturday, July 12, 2008 at 12:22am by drwls*

**student supervision**

which of the following infectious disease accounts for 60 to 80 percent of all school infections? (a)upper-respitary infections (my answer) (b)pink eye (c)tuberculosis (d)hepatisis a and b which of the following statements about playground moniters is correct? (a)youre not ...
*Thursday, August 25, 2011 at 8:30pm by susue*

**Proofread.**

The school I am doing my practicum is very different compared to The New City School. It has a large playground and a smaller one for the kindergarten students. The large playground contains a lot of free space for the children to run and play. It also has a slide, hand bars, ...
*Tuesday, February 19, 2008 at 4:01pm by Bizzy*

**algebra. (Question 1)**

1. Ok. Well you know that 2 angles in the parallelogram have the same angle, right? The opposite angles? And the other 2 angles are the same, right? So let's say the small angle is x. That means there are two angles that are x degrees. Now, if the other angles are 30 degrees ...
*Thursday, November 15, 2007 at 10:59pm by Hannah*

**maths - shapes**

Can you name these quadrilaterals? a) All sides are the same length, opposite sides are parallel, angles are not 90 degrees. b) Two pairs of touching sides are the same length. The diagonals meet at right angles. Opposite sides are not parallel. c) The diagonals bisect each ...
*Wednesday, April 8, 2009 at 3:36pm by janey*

**geometry**

tough to say, with no diagram to check. You want to explain a bit more? I can say that alternate interior/exterior angles are equal, corresponding angles are equal, consecutive interior angles are supplementary
*Monday, January 23, 2012 at 6:52pm by Steve*

**Geometry**

Look at a pair of interior and exterior angles. Don't they form a straight line, so 13x-33 + x+3 = 180 14x = 210 x = 15 each exterior angle is 18° and each interior is 162° the sum of all exterior angles is always 360 so each angle is 360/18 or 20 angles 20 angles ----> 20 ...
*Monday, November 22, 2010 at 11:41am by Reiny*

**Geometry Proofs HELP!!**

I've drawn a picture given line m is parallel to line n, and line g is parallel to line h. However, I don't know how your angles are numbered, so I can't identify angles 4 and 16. Can you provide some clarification of the angles?
*Wednesday, November 21, 2007 at 4:58pm by Michael*

**math**

Supplementary angles: two angles whose measures total 180 deg x = 1st angle 3x - 4 = 2nd angle x + 3x - 4 = 180 solve for x to find the angles
*Wednesday, January 19, 2011 at 4:29pm by helper*

**ALGEBRA 1**

If x and 3x-10 represent the measure of the acute angles of a right tringle find the value of x. THANKS Let's take it step by step. A triangle has 3 angles in it. Those three angles, when added together, is 180. In a right triangle, one of the angles is 90 degrees. The other ...
*Monday, February 12, 2007 at 12:39am by DANIELLE*

**Math 156**

an infinity of shapes can have two right angles provided they have more than three sides and the sum of the inside facing angles minus the sum of the outside facing angles equals 180 degrees.
*Saturday, February 5, 2011 at 1:28pm by dave*

**Math 2**

Use the diagram to find the surface area of a triangular prism. Find the area of the two triangular faces. Then find the area of each of the three rectangular faces. What is the surface area? Describe how you solved the problem. Prism has numbers of 4, 3, 6 and 5. And teacher ...
*Thursday, April 3, 2014 at 6:24pm by Jenny 2*

**geometry**

How many degrees are in all the angles of a parallelogram? 360, right? There will be 2 angles the same measure as b and 2 angles the same measure as c. Therefore, 2(8x-25)+2(7x+55)=360. Solve for x and plug it into your original equation and you will have the answer.
*Monday, December 13, 2010 at 11:54am by majik*

**maths**

Using the following formula for a triangular number, verify that 1225 and 41 616 are triangular numbers. [Hint verify that there is an n for each number that satisfies the equation] e.g., t5 = 15 =(5+1)/2 tn = n(n+1)/2 so, should I plug in 1225 and 41,616 and work the equation...
*Thursday, November 22, 2007 at 5:39pm by Lily*

**Geometry**

Need help finding dimensions of a triangular prism. It has a volume of 900 cubic inches. Two of the dimensions are consecutive even numbers. Two of the dimensions are multiples of 5. All the dimensions are less than 16, but greater than 6. All lengths are different. The base ...
*Thursday, May 20, 2010 at 5:18pm by Brett*

**math**

In a triangle ABC , the internal bisectors of angles B and C meet at P and the external bisectors of the angles B and C meet at Q. prove that: angle BPC + angle BQC = 2 rt. angles.
*Friday, July 27, 2012 at 10:59am by sunny*

**geometry**

In a triangle ABC , the internal bisectors of angles B and C meet at P and the external bisectors of the angles B and C meet at Q. prove that: angle BPC + angle BQC = 2 rt. angles.
*Friday, July 27, 2012 at 8:31pm by sunny*

**Math**

A triangular number is a number that can be represented by dots arranged in a triangular shape as shown below. The first four triangular numbers are 1,3,6,10. What is the 10th triangular number? the 20th? the 100th? 1st 2nd 3rd 4th . . . . . . . . . . . . . . . . . . . . Is ...
*Monday, October 9, 2006 at 10:43pm by Daniel*

**Geometry**

Look at the isoceles triangle at the top and at the bottom. The central angle is the same for each (opposite angles) and the legs are equal so the triangles are congruent. Therefore the angles where each leg meets the floor and the deck are congruent. Equal opposite interior ...
*Friday, January 22, 2010 at 3:13pm by Damon*

**Geometry**

The distance from the apex to the middle of a side of the base is sqrt(9^2 - 2.5^2) = 8.6458 ft That equals the height h of one of the six triangular sides. The area of one triangular side is (1/2)*b*h = 21.615 ft^2 Multiply that by 6 for the total side area: 129.7 ft^2 You ...
*Monday, February 6, 2012 at 9:40pm by drwls*

**maths-parallelogram**

There is a man who plotted a land in shape of a trapezium with its parallel sides to be 15m and 5m & height=9m. The Panchayat decided to take a triangular plot of land from one side to construct a school. He reluctantly agrees to this. is this can be possible? Which are the ...
*Wednesday, March 20, 2013 at 3:09pm by anoynomous*

**English**

On the playground, there are two fathers and three kids. There is a slide on the playground. On the slide a boy is sliding down upside down, and his father is catching the boy. The other father is holding a girl in her left hand. The other girl is on his back and the father is...
*Monday, November 4, 2013 at 6:14am by rfvv*

**geometry**

1. The opposite angles of a parallelogram are equal Use that property to form an equation, (you are given the angles) and solve that equation 2. Consecutive angles of a parallelogram add up to 180°. Let the angles be 2x and 3x, form your equation and solve 3. Let one angle be ...
*Sunday, November 7, 2010 at 5:34am by Reiny*

**college Physics**

A playground is on the flat roof of a city school, 5.2 m above the street below (see figure). The vertical wall of the building is h = 6.50 m high, forming a 1.3-m-high railing around the playground. A ball has fallen to the street below, and a passerby returns it by launching...
*Friday, January 29, 2010 at 5:29pm by Katie*

**Geometry**

We have a triangular prism that has the following characteristics. It has a volume of 360 cubic inches. The base of the triangle is twice the height of the triangle. The difference between the height of the prism and the height of the triangle is 4 inches. The height of the ...
*Thursday, May 20, 2010 at 5:12pm by Brett*

**Pre-Algebra**

What is the total of the measures of the interior angles of a triangle? It's a number, but I am not going to tell you the value; instead, I will use T, for total. We know that the sum of the 3 angles is going to equal that total. So we have something like: Angle1 + Angle2 + ...
*Wednesday, February 3, 2010 at 11:55pm by Anonymous*

**math**

Supplementary angles are pairs or angles that add up to 180 degrees. Complimentary angles are pairs that add up to 90 degress.
*Sunday, January 13, 2008 at 10:00am by drwls*

**Math**

no diagram. If the angles are alternate interior/exterior angles, then 5x+2 = 3x+28 If they are adjacent angles, then 5x+2 + 3x+28 = 180
*Thursday, March 6, 2014 at 3:00pm by Steve*

**maths**

eh? Seems to me that at each vertex the interior and exterior angles sum to 180. So, interior is 150, exterior is 30. If the interior angles are 150, then we need to find an n such that n*150 = (n-2)*180 30n = 360 n = 12 So, a dodecagon has interior angles of 150 and exterior ...
*Wednesday, June 19, 2013 at 10:11am by Steve*

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