Tuesday

February 21, 2017
Number of results: 6,919

**30-60-90 triangle**

The hypotenuse of a 30-60-90 triangle is 10. Find the perimeter. How do i do that?

*March 28, 2011 by Jesse*

**math**

can a right triangle be a scalene triangle?

*October 31, 2010 by gmoney*

**algebra**

triangle 1 is 6,16,32 triangle 2 is 9,24 h they are similar how do i find h?

*March 12, 2012 by becca*

**M.I.G**

Can a right-angled triangle be an isoscele triangle?

*January 24, 2013 by njebo*

**math**

if the angle of a triangle are in a ratoi 5:5:8 what is the triangle

*March 11, 2013 by khanyisile*

**math**

Is a triangle with sides of 25,20, 15 a right triangle?

*October 12, 2013 by Steve*

**honors geometry**

find the area of an isosceles triangel with hypothenues 18

*May 12, 2011 by kourtney*

**math**

an isolation triangle has a base of 6 units and a height of 12 units. find the maximum possible area for a rectangle that is inscribed in the triangle and has one side resting on the base of the triangle. what are the dimensions of the rectangle of maximum area?

*November 12, 2015 by Anonymous*

**calculus**

P /|\ / | \ / | \ on this side there is an / | \ arc with A(θ) in the / | \ middle. the B(θ) /θ | B(θ)\ triangle is not equal O -------------- R to the θ triangle. Q the figure shows a setor of a circle with central angle theta. Let A(θ) be the ...

*November 8, 2009 by Reen*

**maths**

In a triangle ABC, AB = 2 cm, BC = 3 cm and AC = 4 cm. Choose the two options which give a triangle PQR which is similar to triangle ABC. Options: A. PQ = 1 cm, QR = 2 cm and PR = 3 cm. B. PQ = 1 cm, QR = 1.5 cm and PR = 2 cm C.PQ = 2.5 cm, QR = 1.5 cm and PR = 3 cm. D. PQ = 6...

*April 20, 2007 by katie*

**6th G Math**

The school pep squad members wanted to make rectangular spirit flags with bases of 7 inches and heights of 8 inches. Each flag is divided evenly into a red triangle and a white triangle. How much fabric would be needed to make the white triangle for 100 spirit flags?

*April 7, 2012 by Jon*

**math**

The sides of a triangle are in the extended ratio 2 6 7. If the perimeter of the triangle is 45 inches, then what is the length of the shortest side? A. 2 inches B. 3 inches C. 6 inches*** D. 12 inches The measures of the angle of a triangle are in the extended ratio 17 16 12...

*April 21, 2016 by sekerre*

**Physics help please!**

The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an axis through the center? (Diagram shows equilateral triangle with 500g masses at each point, the...

*November 14, 2011 by Me*

**math**

The hypotenuse of a right triangle measures 10m. One leg of the triangle is 2m longer then the other. Find the lengths of the legs. How would you solve this equation?

*July 13, 2008 by Hannie*

**Geometry**

How do you prove that the sum of distances to a point from the interior of an equilateral triangle is equal to the height of a triangle, therefore it is invariant and that a parrallelogram's angular bisectors from a rectangle.

*November 30, 2010 by Desmond*

**MATH**

APPLY THE RULE [1.5X, 1.5Y] TO THE VERTICES OF TRIANGLE TO GET TRINGLE PQR. COMPARE THE CORRESPONDING MEASUREMENTS[SIDE LENGTHS, PERIMETER, AREA, ANGLE MEASURES] OF THE TRIANGLE

*January 9, 2011 by VINI*

**physics**

3 identical charges each having charge 10 coulomb are placed at the corners of an equilateral triangle of side 20cm find the electric field at the centre of triangle

*April 16, 2013 by aditi*

**Math**

The vertices of ΔABC are A(2, –5), B(–3, 5), and C(3, –3). The triangle is reflected over the x-axis. Use arrow notation to describe the original triangle and its reflection. a. A(2, –5), B(–3, 5), C(3, –3) --> (2, –5), (–3, 5), (3, –3) b. A(2, –5...

*April 7, 2016 by Queen*

**Auburn Hugh School**

The hypotenuse (side C) of a triangle is 13 inches long. Which of the following pairs of measurements could be correct for the lengths of the two sides of the triangle? (Note:A^2 + B^2 = C^2)

*September 28, 2016 by abeo*

**Pre-Algebra**

"Triangle LMN has L at (1,-1) and M at (2,3). Triangle L'M'N' has L' at (-1,-1) and M' is at (3,2). Describe the transformation." This question is really tripping me up. I even tried putting it on a graph to solve it, but I just can't. PLEASE HELP!!!!!

*January 26, 2017 by purplegurl*

**math please help**

There are two triangles one large and one small. Write an expression in simplest form for the perimeter of each triangle. Large triangle left side says 4x+2 top says 7x+7 bottom days 5x-4. Small triangle left side says x+3 top says 2x-5 and bottom says X+7. How do I write an ...

*May 19, 2015 by stressed out over math*

**Physics 30**

A point charge q=+4.7nC is placed at each corner of an equilateral triangle with sides of 0.21m in length. a) What is the magnitude of the electric field at the midpoint of the three side of the triangle? b) Is the magnitude of the electric field at the centre of the triangle ...

*April 5, 2012 by Derek*

**10th grade**

Find the area of the shaded region. the outter shape is a rectangle and the inside shape is a triangle everything but the triangle is shaded now the numbers are 18 (on left side of rectangle) and 28 (on the bottom) the wide part of the triangle on the inside of the rectangle ...

*May 19, 2010 by ashley*

**geometry**

An isosceles trapezoid has bases of 4 and 10. If the base angle is 45°, find the area.

*June 8, 2010 by Anonymous*

**geometry**

Find the perimeter of an isosceles trapezoid with base lengths of 10 and 18 and height of 8.

*January 20, 2011 by Kate*

**geometry**

Find the perimeter of an isosceles trapezoid with base lengths of 10 and 18 and height of 8.

*January 20, 2011 by Kate*

**geometry**

Isosceles trapezoid ABCD has legs AB and CD and base BC If AB = 7y – 4, BC = 4y – 6, and CD = 8y – 18, find the value of y.

*November 25, 2011 by Ryan*

**geometry**

this diagram show isosceles trapezoid QRST. What is the length , in units of _ QS when Q x-1 and 2x-2

*December 5, 2011 by aaron*

**Army school math**

Area of isosceles tringle if base is 6 cm and perimeter is 26 cm

*July 26, 2016 by Ritesh*

**Geometry**

Which statement is true? A. The altitude drawn to the leg of a right triangle forms two triangles that are similar to each other and to the given triangle. B. The altitude drawn to the hypotenuse of a right triangle forms two triangles that are similar to each other and to the...

*June 30, 2010 by Superman*

**Geometry**

Which statement is true? A. The altitude drawn to the leg of a right triangle forms two triangles that are similar to each other and to the given triangle. B. The altitude drawn to the hypotenuse of a right triangle forms two triangles that are similar to each other and to the...

*June 30, 2010 by Superman*

**Math**

In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108? I tryed to find the area of triangles on the side and I figured that if you put a line from the top of the triangle...

*December 7, 2013 by Lily*

**Math**

In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108? I tryed to find the area of triangles on the side and I figured that if you put a line from the top of the triangle...

*December 7, 2013 by Lily*

**11th grade**

1. Bruce, an appliance salesman, earns a commission of $50 for each washing machine he sells and $100 for each refrigerator. Last month he earned $500 in commissions. Find all possibilities for the number of each kind of appliance he could have sold. 2. Luis has 95 cents in ...

*October 15, 2008 by Samantha*

**Physics**

Three equal charges q form an equilateral triangle of side a. Find the potential at the center of the triangle. Express answer in terms of the variables a, q and Coulomb constant k.

*March 9, 2010 by Heather*

**physics**

An equilateral triangle has sides of 0.15 m. Charges of -9.4, +8.0, and +2.5 µC are located at the corners of the triangle. Find the magnitude of the net electrostatic force exerted on the 2.5-µC charge. each cahrge has X10^-6 btw

*January 30, 2011 by hearttyy*

**Physics**

3 charges sit on vertical equilateral triangle the side of each is 30.0 cm. if the triangle are A= +4.0 uC B=+5.0 uC and C=+6.0 uC (clockwise from top) what is the force on each charge? Can someone please explain me in detail i am really confuse :(((

*August 19, 2012 by sara*

**math problem triangle inequality help**

Two sides of a triangle are 11 and 17. How many possible lengths are there for the third side, if it is a positive integer? I tried listing them all but I get confused...Please help thank you!

*December 26, 2012 by Knights*

**math,trigonometry**

solve each triangle described below using Δ ABC : 1)a = 10, A = 16°, B = 49° 2)a = 8, b = 7, A = 88° I don't know how to do this i forgot ... could u help (Steve, or Mrs.Sue, or Writeteacher plz help) this topic is Oblique triangle

*January 5, 2015 by Anonymous*

**Math**

Create a word problem about a triangle in any sports field. Write measures of all sides. Find area of the triangle by using Heron's formula

*August 11, 2016 by Aish*

**Maths**

The points A(1,5) and B(9,3) are part of a triangle ΔABC. The triangle has a right angle at A and and sides satisfy AB=2AC. Find a point C such that C lies above the line AB.

*October 31, 2016 by Jared*

**maths**

The points A(1,5) and B(9,3) are part of a triangle ΔABC. The triangle has a right angle at A and and sides satisfy AB=2AC. Find a point C such that C lies above the line AB.

*October 31, 2016 by Lauren*

**Maths**

One of the formulas to find the area of a triangle is a = r*s. Where the r is the radius of the circle inscribed the triangle, and s being the semi perimeter. (s = p/2) Prove that the same formula works for a square.

*February 9, 2017 by Thomas*

**Geometry**

One side of a triangle is 15 inches, and the area of the triangle is 90 square inches. What is the area of a similar triangle in which the corresponding side is 9 inches?

*May 17, 2010 by Kaley*

**math**

show that the triangle with verticies A(8,5) B(1,-2) C(-3,2) is a right triangle, and find its area. the answer to the area is : 28. please show me how to show its a right triangle, thanks!

*August 13, 2012 by alex*

**Math please help urgent**

In triangle ABC, D bisects side BC, G bisects side AB, and the points E and F trisect side AC. What is the area of the shaded polygon, if the area of ABC is 108? I tryed to find the area of triangles on the side and I figured that if you put a line from the top of the triangle...

*December 7, 2013 by Lily*

**math**

triangle abc is reflected over the y-axis. What are the coordinates of the reflected triangle? Describe in words what happens to the x-coordinates and y-coordinates of the original triangle's vertices as a result of this reflection? I can't figure out how to describe what ...

*March 15, 2016 by Amanda*

**maths**

Choose three options which are true: a) an angle of 150 degrees is equivalent to 2pie/3 radians. b) Cos 0 = cos (0 – pie/2) for al values of 0. c) Sin 0 = cos (0 – pie/2) for all values of 0. d) If triangle ABC has a right angle at B, then sin A = cos C e) In any triangle ...

*June 8, 2007 by kat*

**Math**

Need help on the problem below. Tommy drew a triangle. Which information will enable you to draw a triangle that is congruent to Tommy's triangle? a. 2 given sides b. 2 given angles c. 2 given sides and 1 given angle d. 3 given angles Thanks....

*October 26, 2013 by Brandi*

**Math Please Help**

Look at the given triangles. they both have a right angle. blue: 4x+2, 7x+7, 5x-4 red: x+3, 2x-5, x+7 A. write an expression in simplest form that shows the difference between the perimeter of the larger triangle (that's the blue one) and the perimeter of the smaller triangle...

*June 1, 2016 by Call me Bunny*

**Math**

If the hypotenuse of a right triangle is 13 and one of its legs is 5, find the area fo the triangle. Answer Choices 20 40 45 30 25 I know a hypotenuse the side of a right triangle opposite the right angle. You can't multiply the hypotenuse with one of the legs.

*August 20, 2009 by Sahana Epari*

**math**

in a triangle, the measure of the first angle is twice the measure of the second.the measure of a third triangle is 64 degrees more than athe measure of the second angle. Use the facts that the sum of the measures of the three angles of a triangle is 180 degrees to find the ...

*March 13, 2013 by brittany*

**Update Math Question**

The area of triangle B is 64 times greater than the area of triangle A.The perimeter of triangle B is how many times greater than the perimeter of triangle A? how many times greater than the perimeter of triangle A? A. 8 times greater B.64 times greater C.128 times greater D....

*June 12, 2012 by jessica*

**Maths-Vectors Assistance PLZZ!**

Prove that the vectors u=3i+j-2k , v= -i+3j=4k, and w=4i-2j-6k can form the sides of a triangle They will form a triangle if they are linearly dependent, that is, if (3,1,-2)= m(-1,3,4) + n(4,-2,-6) from which we get 3 equations in two unknowns. -m + 4n = 3 #1 3m - 2n = 1 #2 ...

*April 16, 2007 by Babanla*

**geometry**

in an isosceles triange with base angles at (0,0) and (7,0), how do I find the coordinates of the 3rd angle?

*November 27, 2011 by mary*

**geometry**

if the isosceles trapezoid is dilatede with a factor 0.5,what is the area of dialation in square yards?

*March 10, 2016 by ali*

**Calculus**

The hypotenuse od a right triangle is 12cm in lenht. Calculate the measures of the unknown angle in the triangle that will maximize its perimeter? I got the formula P= 12(1 + sin0 + cos0) and A= 12sin0cos0, but i don't know what to do next.

*April 10, 2010 by Adeola*

**math**

apply the rule (1.5x, 1.5y) to the vertices of triangle ABC to get triangle PDR. Compare the corresponding measurements (side lengths, perimeter, area, angle measures) of the two triangles.

*November 6, 2010 by jacko*

**math**

Apply the rule (2x, 0.5y) to the vertices of triangle ABC to get triangle FGH. Compare the corresponding measurements (side lengths, perimeter, area, angle measures) of the two triangles.

*November 6, 2010 by jacko*

**Help!!!!!!!!!**

Calculate Triangle G°, free energy change, that occurs when 12g of Shila react with excess And at 298k according to the following reaction: N2(g)+3H2(g)<======>2NH3(g) Triangle G°=-34KJ/mole

*December 19, 2012 by Lost Girl!!*

**Math (Trig)**

Find the indicated ratios in the triangle. Right triangle with a height of 2.56cm length of 4.65cm and hypotenuse of 5.31cm a. tan A b. cos C c. sin C How do I figure this out?

*January 7, 2013 by Nj*

**geometry**

in triangle lmn altitude lk is 12cm long through point j of lk is a line drawn parallel to ms, dividing the triangle into two region with equal areas find lj

*February 20, 2013 by Joe*

**Math**

Create a word problem of your own about a triangle in any sports field. Write measures of all sides. Find area of the triangle by using Heron's formula.

*August 13, 2016 by Aish*

**Maths (really hard)**

The points A(1,5) and B(9,3) are part of a triangle Î”ABC. The triangle has a right angle at A and and sides satisfy AB=2AC. Find a point C such that C lies above the line AB.

*November 1, 2016 by Steven*

**Math**

Two triangles are similar. The measure of the shortest side of the first triangle is 12 and the measure of the shortest side of the second triangle is 5. If the longest side of the first triangle measures 15, what is the measure of the longest side of the second triangle? A.2....

*January 3, 2010 by S*

**math**

Can someone please help me with the following problems Determine if the triple numbers are can be sides of a right triangle? sqrt(10)sqrt(13)sqrt(23) The length of thy hypotenuse of a right triangle equals the length of one of legs of the triangle A) always true B) sometimes ...

*May 22, 2010 by Nicole*

**Geometry**

A triangle is enlarged by a factor of 3. The perimeter of the new triangle is 36 feet. What could be the lengths of the sides of the original triangle? A. 3 feet, 4 feet, and 5 feet B. 1.5 feet, 1.25 foot, and 1.25 foot C. 2 feet, 0.5 feet, and 1.8 feet D. 4 feet, 4 feet, and ...

*March 2, 2014 by anon*

**Math**

1. What is the remainder when 2^190 is divided by 5? How do I approach these questions; do I write it down on paper, or use my calculator(how do I see the remainder?)? 2. Figure: A large right triangle, shortest base in on the ground, shorter height is vertical, longest ...

*March 18, 2015 by Linda*

**Physics**

The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an axis through the center? (Diagram shows equilateral triangle with 500g masses at each point, the...

*November 14, 2011 by Please Help!*

**logic**

the rectangle represented the AB side is 4cm the side BC is 6 cm i want to build a triangle taking the AB segment and the third vertice inside the triangle so his area becomes higher than 8 cm*cm. the area in cm*cm of the region of the rectangle in which can be chosen the ...

*January 10, 2014 by Jhon*

**logic**

the rectangle represented the AB side is 4cm the side BC is 6 cm i want to build a triangle taking the AB segment and the third vertice inside the triangle so his area becomes higher than 8 cm*cm. the area in cm*cm of the region of the rectangle in which can be chosen the ...

*January 10, 2014 by Jhon*

**Intermediate Algebra**

The base of the triangle is 5 cm greater than the height. The area is 33 cm^2. Find the height and the length of the base. The height of the triangle is ___ cm The base of the triangle is ___ cm

*March 3, 2014 by Spacegazing*

**math**

A circle is inscribed in triangle ABC with sides a, b, c. Tangents to the circle parallel to the sides of the triangle are constructed. Each of these tangents cuts off a triangle from ∆ABC. In each of these triangles, a circle is inscribed. Find the sum of the areas of ...

*October 12, 2016 by DAS*

**Geometry**

A right triangle and a square share a side. The hypotenuse of the triangle measures 10 cm. One base of the triangle measures 4 cm. Neither the known base nor the hypotenuse is the side that is shared with the square. Find the area of the square.

*September 11, 2011 by Debbie*

**math plz help my last chance to do this homework**

a) write an expression in simplest form for the perimeter of each triangle. b)write another expression in simplest form that shows the difference between the perimeter of the larger triangle and the perimeter of the smaller triangle.

*May 25, 2016 by sarah*

**maths**

Triangle ABC has area [ABC]=468. D,E and F are the midpoints of BC,CA and AB, respectively. Points P,Q and R are defined such that P is the incenter of AEF, Q is the incenter of BFD, and R is the incenter of CDE. What is [DREPFQ]? Details and assumptions [PQRS] denotes the ...

*May 22, 2013 by hemant*

**Math: Geometry**

isosceles trapezoid ABCD is shown below with a line ef drawn through its center. Of the isosceles trapezoid is dilated using a scale factor of 1/2 and a line is drawn through the center of the new dilated figure, what relationship will that line have with line EF? An image ...

*December 8, 2015 by Blah*

**MATHS-geometry**

how do you draw an obtuse angle triangle, construct the perpendicular bisector of each side Draw a triangle with one angle greater then 90 degrees. Find the midpoint of each side. Then draw a perpendicular to each side at each midpoint. The three lines may intersect OUTSIDE ...

*June 3, 2007 by NIcole*

**geometry**

Find a coordinate rule for a reflection across the line y = 2x. Then use the rule to find the image of triangle ABC = [ 2 6 0 ] [ 3 -4 4 ]. Be sure to clearly show your work indicating how you found your rule. In addition write the coordinate matrix for triangle A'B'C'. Graph ...

*March 1, 2010 by lia*

**pre-algebra**

The perimeter of an equilateral triangle is 7 inches more than the perimeter of a square,and the side of the triangle is 5 inches longer than the side of square.Find the side of the triangle.

*September 22, 2007 by Nita*

**Circumcenter of Triangle in circle**

Equilateral triangle ABC and a circle with center O are constructed such that BC is a chord of the circle and point A is the circumcenter of BCO in its interior. If the area of circle with center O is 48pi, then what is the area of triangle ABC? How to do this? I don't ...

*March 29, 2013 by Knights*

**Math/Trig**

Given A=56degrees, C=61degrees, and b=10.5, solve triangle ABC. If no triangle exists, explain why. If two solutions exist, write both. Round your answer to the nearest tenth

*January 12, 2011 by Tabby*

**Math/Trig**

Given A=56degrees, C=61degrees, and b=10.5, solve triangle ABC. If no triangle exists, explain why. If two solutions exist, write both. Round your answer to the nearest tenth

*January 13, 2011 by Tabitha*

**calculus**

a right triangle is formed in the first quadrant by the x- and y- axes and a line through the point (1,2). write the length of the hypotenuse as a function of x. find the vertices of the triangle such that its area is a minimum.

*March 17, 2013 by ej*

**Math**

Native Americans made baskets like this one in the early 1900's. If two sides of the triangle shown on the basket measure 1/4 in., and the third side measures 3/8 in., what is the perimeter of the triangle?

*February 23, 2015 by Amri*

**geometry**

I have a triangle ADB. AD = 2, AB = 3 DB is x. I need to find x. Additional info. AB/BC = BD/BD = AD/BD. Other triangle is DCB. DB is x, DC is 8, CB is y. Booth of triangles are connect by DB. Figure resembles a kite. (Needed to complete 3/y =x/x= 2/x. Is this correct?)

*April 20, 2015 by robin*

**math**

triangle ABC has vertices A(3,4), B(4,-3) and C(-4,-1). a. draw a sketch of the triangle b. draw the altitude from vertex A c. find the slope of side BC which is =-1/4 d. find the slope of the altitude from A which is 4 e. find the equation of the line that contains this ...

*October 27, 2010 by Ted*

**Physics**

This question was posted earlier but the explanation given was confusing. The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an axis through the ...

*November 14, 2011 by Me*

**Maths Congruence**

(1)Are two triangles congruent if two sides and an angle of one triangle are equal to two sides and an angle of the other?If not then under what conditions will they be congruent? (2)How to construct Triangle(ABC) and Triangle(PQR)such that they are equal in area but not ...

*September 20, 2016 by Varun Dhawan*

**Geometry**

Which is the hypotenuse-angle theorem? ________________________________________ A. If the hypotenuse and an acute angle of a right triangle are congruent to the corresponding parts of another right triangle, then the triangles are congruent. B. If the hypotenuse and an obtuse ...

*June 30, 2010 by Superman*

**Repost- Calculus; someone please help**

Please help out. Thank you. A right triangle has one leg on the x-axis. The vertex at the right end of that leg is at the point (3,0). The other vertex touches the graph os y=e^x. the entire triangle is to lie in the first quadrant. Find the maximum area of this triangle....

*February 9, 2011 by Amanda E.*

**geometry**

An isosceles trapezoid has base angle 45 degrees and bases of length 12 and 32. Find its area.

*April 28, 2010 by Anonymous*

**Geometry**

find the measure of each angle of an isosceles trapezoid if two of the angles has measures in the ratio of 2:3.

*September 21, 2011 by Lissa*

**Reading**

Is the main characher in Football Futigive more like an equilateral isosceles or scalene?

*August 28, 2013 by Charles*

**tri**

a vertex of an isosceles is 40-20 degrees. each leg measure 320mm. find the length of the base

*October 27, 2016 by mereg*

**Math**

Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure to the nearest tenth of a degree, where ...

*June 10, 2014 by Han*

**Math**

A triangle has a perimeter of 35inches. The length of side a of the triangle is twice the length of side b. Side c is 5inches longer than side a. What is the length of each side of the triangle?

*September 13, 2011 by Bobbi*

**algebra**

A triangle has an area of 20 inches squared. Every dimension of the triangle is multiplied by a scale factor, and the new triangle has an area of 180 inches squared. What is the scale factor.

*January 16, 2012 by Anonymous*

**Algebra 1**

a triangle has an area of 20 inches squared. every dimension of the triangle is multiplied by a scale factor, and the new triangle has an area of 180 inches squared. what was the scale factor?

*October 6, 2013 by Shanelle*

**geometry**

if triangle FGH~ to Triangle PQR, FG = 6, PQ = 10 and the perimeter of trinagle PQR is 35 find the perimeter of triangle FGH

*December 13, 2010 by Chris*