Number of results: 82,773
Geometry
Where can the lines containing the altitudes of an obtuse triangle intersect? I. inside the triangle II. on the triangle III. outside the triangle A)I only B)I or II only C)III only D)I, II, or III PLEASE HELP ME ASAP!!!!
Thursday, December 6, 2012 at 5:09pm by Corey
trig
did you make a diagram ? let the top of the monument be A and the bottom be B let the person's position be at P Draw a horizontal from P to AB to meet AB at C. then CB = 9 angle APC = 6°' 50' or 6.8333° angle BPC = 7° 30' or 7.5° Using triangle ...
Tuesday, February 15, 2011 at 12:14am by Reiny
geometry
Triangle ABC is congruent to triangle DEF. If the length of AB is 12 feet and the length of AC is 10 feet. Find the length of DE. can someone please help me on this question please and thank youu :)
Saturday, September 3, 2011 at 10:56pm by Alexis
math
The scale factor of 2 similar polygons is 3:4. If the perimeter of the large polygon is 200, what is the perimeter of the small polygon?
Wednesday, March 6, 2013 at 9:23pm by sam
geometry
The perimeter is the distance around an object. A fence enclosing a backyard marks the perimeter of your backyard.
Wednesday, January 26, 2011 at 9:26pm by Ms. Sue
geometry
Suppose the perimeter of a polygon is 27 inches. If the sides of the polygon are scaled by a factor of 1/3, what is the new perimeter?
Tuesday, January 26, 2010 at 10:34pm by sharon
math
the scale of two similar quadrilaterals is 1:2. The perimeter of the smaller quadrilateral is 80 centimeters. What is the perimeter of the larger quadrilateral?
Monday, April 5, 2010 at 9:23pm by Anonymous
Math
The scale of two similar quadrilaterals is 1:3. The perimeter of the smaller quadrilateral is 90 centimeters. What is the perimeter of the larger quadrilateral?
Wednesday, February 3, 2010 at 9:32pm by Ashely
Perimeter and area
w = width = 9, L = length Area = Lw 81 = 9L L = 9 Perimeter P = 2w + 2L w = 9, L = 9 P = 2(9) + 2(9) P = ?
Thursday, February 3, 2011 at 8:03pm by helper
algebra
perimeter = 60+50 = 110 so ratio of length : perimeter = 30 : 110 = 3:11
Tuesday, April 13, 2010 at 2:41pm by Reiny
math
Perimeter is 2L + 2W L=3W Perimeter=6W+2W I assume you can take if from here.
Monday, February 9, 2009 at 4:45pm by bobpursley
Algebra 2
Considering all possible rectangles with a given perimeter, the square encloses the greatest area. Proof: Consider a square of dimensions "x "by "x", the area of which is x^2. Adjust the dimensions by adding "a" to one side and subtracting "a...
Monday, March 21, 2011 at 10:19pm by tchrwill
geometry...TRIANGLE
ABCD is a quadrilateral with ∠ADC=∠ACD, ∠ACB=∠ABC and CD=7. If triangles ADC and ABC have perimeter 51 and 59, respectively, what is the value of BC?
Thursday, April 18, 2013 at 4:18am by HELP ME...uRGENT!
calculus
A rectangle is to be inscribed in a right triangle having sides of length 36 in, 48 in, and 60 in. Find the dimensions of the rectangle with greatest area assuming the rectangle is positioned as in the accompanying figure. right triangle: hypotenuse- 60in base-36in height-48in
Saturday, July 31, 2010 at 9:51pm by Mely
Trigonometry
Find the 3 angles of the triangle, then use law of sines to find a, the side opposite angle A then, d = a sin34°
Monday, February 4, 2013 at 10:24pm by Steve
math
Find the interior angle formed by points A(1,5,3) , B(-2,3,7) , C(3,2,5). does this mean i need to find all the 3 angles of triangle?
Saturday, December 24, 2011 at 10:45pm by yuni
geometry
i have only a measuremment for one side of a triangle need to find the other to to find area how do i do this
Monday, April 12, 2010 at 9:50am by bob
Algebra
41(x+x+x+x)=x^2 since the area of a square is forty-one times its perimeter, I multiply 41 on the perimeter side to set the perimeter equal to the area solve for x. you'll get two answers. eliminate the one that is equal to zero since a measure of length cannot equal to zero!
Saturday, September 11, 2010 at 2:02pm by Anonymous
calc
Find the perimeter of region R which is bounded by y = 1/(x^2+1) and y = -cos(x).
Wednesday, December 19, 2012 at 5:30pm by taylor
math
perimeter = 36 2 x find area please help
Thursday, October 11, 2012 at 5:25pm by shania
Geometry
How do I find the perimeter of the rectangle (l=10.6in and h=6.1 in
Monday, April 16, 2012 at 8:34pm by Jane
Math Situation
find the polynomial for the perimeter and for the area A+2 A
Sunday, April 1, 2012 at 3:31pm by Sandra M
mensuration
3/4 part of circle with 2 lines 0.7 m . find its perimeter.
Sunday, October 16, 2011 at 5:48am by bhumika
MATH!
how do you do number 2 the question is FIND the perimeter of each shape
Wednesday, June 9, 2010 at 7:46pm by Sara!
calculus
1) A ladder 25 feet long is leaning against the wall of a house. The base of the ladder is pulled away from the wall at a rate of 2 feet per second. Find the rate at which the are of the triangle is changing when the base of the ladder is 7 feet from the wall. --- I did the ...
Monday, November 5, 2007 at 8:58pm by Anonymous
geometry
the scale factor of two similar polygons as 4:7. the perimeter of the smaller polygon is 320 centimeter what is the perimeter of the larger polygon
Tuesday, March 27, 2012 at 9:11pm by joselynn
geometry
Are you absolutely sure that the perimeter was given in inches, not centimeters? If you are -- then I'm off base because I've figured the perimeter as 60 centimeters.
Thursday, July 14, 2011 at 8:08pm by Ms. Sue
algebra
the scale factor of two similar hexagons is 3:4. the perimeter of the smaller hexagon is 60 centimeters. what is the perimeter of the larger hexagon?
Monday, December 27, 2010 at 3:30pm by abeet
Math
Two corresponding sides of similar polygons are in the ratio of 5:4. If the perimeter of the smaller figure is 40, what is the perimeter of the larger figure?
Sunday, February 7, 2010 at 2:15pm by Crystal
precalculus HELP!
I posted this question before: What is the area enclosed by the graph of the absolute value(3x)+ the absolute value(4y)=12 I tried solving for y and got: y=4-x when I graphed this, I got a linear equation graph...I am wondering if I am supposed to find the area of triangle by ...
Monday, December 4, 2006 at 9:28pm by sara
Math
A triangular prism has an equilateral triangle as its base. The base of the triangle is 10cm and its height is 10cm. The length of the prism is also 10cm. Find it's surface area
Monday, December 3, 2012 at 11:32am by Cherie
college
One side of a triangle is 2 cm shorter than the base. The other side is 3 cm longer than the base. What lengths of the base will allow the perimeter to be greater than 19 cm?
Sunday, May 9, 2010 at 10:42am by Karen
Grade 6 math
A rectangular tablecloth is 2.5 m long. Trim is to be sewn around the perimeter of the cloth but there is not enough. What decrase in width will make the perimeter 0.4m shorter if the length remains the same?
Monday, March 2, 2009 at 7:48pm by vana
calculus
the base of a triangle is 2 cm shorter than the width of a rectangle. The rectangle's length is 4 times its width and the triangle's height is the same as the rectangle's length. find the area of both figures if the difference of the two areas is 30cm2
Wednesday, September 8, 2010 at 10:46pm by Anonymous
geometry
The perimeter is not squared. Only the area is squared. The perimeter is 34 feet.
Tuesday, February 26, 2013 at 2:46pm by Ms. Sue
Understanding Perimeter
When finding the perimeter of a figure on a grid, why do you not count the spaces inside the grid?
Monday, February 25, 2013 at 7:14pm by Sharon
Right triangle
The easiest way is to use the distance formula for points in the (x,y) form. Use the formula 3 times. You have triangle GHJ. Use the formula from point: G to H H to J G to J Only then will you be able to tell if triangle GHJ is a right triangle or not.
Friday, February 15, 2008 at 11:22am by Guido
Geometry
1. The sides of a triangle have lenghts x, x+4, and 20. Specify those values of x for which the triangle is acute with the longest side 20. 2. use the information to decide if triangle ABC is acute, right, or obtuse. AC=13, BC= sq. rt. 34, CD=3 >>i know this is ...
Monday, March 3, 2008 at 10:30pm by Anna-Marie
algebra
The width of a rectangle is three fourths the length. The perimeter of the rectangle becomes 50 cm when the length and the width are each increased by 2cm. Find the length and the width. Draw a diagram and convince yourself that the perimeter P=2(L+W) We're told that W=(3/...
Tuesday, September 19, 2006 at 3:37pm by summer
geometry
Two sides of a triangle are equal. The third side is 5 inches longer than the one with equal sides. What is the length of the equal sides if the perimeter is 32 inches?
Wednesday, September 21, 2011 at 11:28pm by Ck
geometry
if area of triangle wxz is 48 cm squared, x =10 cm, xz = 10 cm, middle =8 cm then what is the perimeter of wxz
Tuesday, November 15, 2011 at 7:59am by tim
surface area & volume
as you recall, the area of a regular polygon is 1/2 the product of the apothem and the perimeter. That help? How about this: one side of a hexagon is 1/6 the perimeter.
Monday, November 12, 2012 at 10:01am by Steve
MATH
When a certain rectangle is folded in half, it forms two squares. If the perimeter of one of these square is 28, what is the perimeter of the original rectangle?
Friday, November 9, 2012 at 8:51pm by Anonymous
geometry
The shortest side of two polygons have lenghts in the ratio 2:5.The perimeter of the smallest polygon is 20. what is the perimeter of the large polygon?
Friday, September 23, 2011 at 10:56am by Sam
Geometry
since perimiter is a linear measurement, the ratio of the perimeter equals the ratio of the sides if x is the larger perimeter, x/12 = 3/4 4x = 36 x = 9
Wednesday, April 27, 2011 at 2:21pm by Reiny
math
If the vertices of quadrilateral ABCD are A(1,1), B(-2,3), C(-4,-1), and D(2,-3), and the quadrilateral is dilated so that it's perimeter is 2 times the original perimeter, what would the vertex matrix look like?
Thursday, January 1, 2009 at 9:23pm by Anonymous
trig
Make the following diagram Draw a base line , label the balloon as B and above the base line Label the point directly below the balloon A on the base line label the two stations as C and D so that angle ACB = 78.2 and angle ADB = 17.6 Now in triangle BCD , CD = 10 , angle BCD...
Monday, October 8, 2012 at 8:58am by Reiny
MATH
can we sketch a triangle with 1:2:3 side-length ratio???? Intuitively, no. Think about the angles of the triangle. If the sum of two sides is equal to the length of the last side, then the "triangle" is a straight line. But the question is, when i draw it with ...
Sunday, September 24, 2006 at 2:52pm by Katrina
Maths - More than one question please help me
I will tackle this one for you <1) The sides of a triangle are given by the lines: 2x-y+3=0, x-2y-3=0 and 2x+y-11=0. Find the area of this triangle. > Equation #1 : 2x-y = -3 Equation #2 : x-2y = 3 Equation #3 : 2x+y = 11 solving #1 and #3 I got A(2,7) solving #2...
Thursday, July 3, 2008 at 7:05am by Reiny
Shapes
I know this seems like a somewhat silly question, but what shape is a pizza slice? I know most of us are going to say "triangle." Is it a triangle? Can a triangle have a curved line in it or do all lines have to be straight? I know we might say curvalinear triangle, ...
Wednesday, February 20, 2008 at 9:04pm by MattsRiceBowl
math
Triangle ABC is similar to triangle FGH. Angle A measures 42 degrees. Angle G measures 49 degrees. Find the measure of angle H
Monday, August 20, 2012 at 6:58pm by james
math
Suppose the area of a rectangle is 36 square inches. Find the Minimum perimeter for a rectangle with this area. Please help asap. Thank you! (so much) We know that A=l*w=36 and P=2(l+w) From the area formula we see that l=36/w Putting this into the perimeter formula we get P=2...
Thursday, August 31, 2006 at 11:23pm by l
Maths
Find the area of the triangle with sides 8.6 cm, 9.1cm and 9.7cm. First find the size of one of the angles.
Monday, April 29, 2013 at 3:14pm by Shane
Trigonometry
Given Triangle ABC: Right Triangles 1. If a = 6 and <B = 53º, find b, c, and <A 2. If c = 13 and b = 12, find a, <A, and <B 3. If <A = 20º and b = 10, find <B, a and c 4. If c = 30 and <A = 40º, find <B, a
Thursday, September 16, 2010 at 7:18pm by Anonymous
Pre-Algerbra
none of the choices has a perimeter of 188 ft. All have a perimeter of 376 ft. A square has maximum area for a given perimeter, so the garden should be 47 by 47, with area = 2209. Assuming one of the given choices, you'd want a square, so go with 94x94. Heck, the table ...
Wednesday, October 17, 2012 at 1:52pm by Steve
math
I believe this question is asking you to see if those values are legitimate for a right triangle. So you assign one leg to 9, one to 12 and the hypotenuse to 16. Then see if a^2 + b^2 = c^2. If so those numbers could form a right triangle; if not, then no. For example, the ...
Sunday, August 23, 2009 at 10:09pm by DrBob222
math
I think you mistyped the perimeter. Set the problem up base i/perimeter i = other base/perimeter the multiply across the equal sign top to bottom then divide by the other number. using what you have given above, it would be 5/1 = 10/x 10 times 1 divided by 5 so the answer ...
Thursday, May 7, 2009 at 3:27pm by MsPJ
Math
A triangle has vertices X(0,0), Y(4,4), and Z (8,-4). a) Write an equation for each of the three medians b) Recall that the centroid of a triangle is the point of intersection of the medians of the triangle. Use the equations from part a) to verify that (4,0) is the centroid ...
Friday, October 12, 2007 at 8:32pm by Luisa
physics
The subtended angle between the two cities, measured from the Earth's center, is 42.50-14.62 = 27.88 degrees (You can take the difference of the two latitudes since the longitudes are the same.) The distance you want is the base of an isosceles triangle with two equal ...
Saturday, March 3, 2012 at 9:31pm by drwls
math (area&perimeter)
the demensions of a rectangle are 5y for the height, and 7y-4 for the length. the question i need help with is asking me to simplify the equation for the perimeter and the area of this figure.
Sunday, January 23, 2011 at 3:02pm by aleasha
Math
Two corresponding sides of similar polygons are in the ratio of 2:3. If the perimeter of a smaller figure is 6 meters, what is the perimeter of the larger figure? My answer is: 9m. Is this correct?
Thursday, September 24, 2009 at 9:30pm by B.B.
Math
A perimeter is the distance around an object. For instance, the perimeter of a regular sheet of computer paper is 8.5 + 8.5 + 11 + 11 = 39 inches.
Saturday, October 18, 2008 at 9:59pm by Ms. Sue
math
a square with perimeter 5 less then the area. perimeter and area equal 45
Sunday, April 3, 2011 at 2:29pm by lily
math
If the perimeter of the smaller rectangle is 30 inches, what is the perimeter of the larger rectangle?
Sunday, February 21, 2010 at 7:44pm by Anonymous
Maths
SQUARE: A=S^2=S.S, Perimeter=P=4S. REGULAR HEXAGON: Perimeter=T=6h,h=T/6. h+P=T/6+4S.
Saturday, June 19, 2010 at 9:09am by Henry
Perimeter
Draw a figure with a perimeter of 24 squares, using 21 squares
Sunday, April 18, 2010 at 4:48pm by Jhon
Area and Perimeter
if the area of a square is 9m squared, what is the perimeter and how do you figure it out
Wednesday, October 10, 2007 at 6:03pm by Cyleste
algebra
A triangle has sides of lengths 20, 28, and 32. A similiar triangle has a side of length 15 and another of length 24. How long is the third side of this triangle?
Saturday, March 5, 2011 at 6:49pm by Chris
math
each side of triangle = 33/3 = 11 So the side of the square is 11 perimeter of square = 4(11) = 44
Monday, December 5, 2011 at 8:47am by Reiny
Math
I think that I have this tangram figured out. The big organe triangle is letter (a) and the big green triangle is letter (b) the dark red triangle is letter (c) the purple triangle is (e) the yellow square is letter (d) the parallelogram is letter (f) and the medium organ ...
Friday, July 10, 2009 at 2:22pm by B.B.
Math
The perimeter of a rectangle is 2(L+W) where L and W are length and width. Since the perimeter is 302 yards, so L+W is half the perimeter = 151 yards. If the length is 84 yards, the width would be 151-84=?
Wednesday, August 12, 2009 at 2:16am by MathMate
trigonometry
On the assumption that you consider NORTH to have a bearing of 0 and 135 is a clockwise rotation from there, you would have a triangle with the x-axis as one side, the hypotenuse as 140 miles and you want the vertical side of that triangle, so sin 45 = x/140 x = 140/sin45 = ...
Wednesday, January 7, 2009 at 3:50pm by Reiny
Mathematics-please help!
Two vertices are on the same vertical line, namely x=2, for (2,1) and (2,7). This is the base of the triangle with length 7-1=6. The height of the triangle from point (-2,3) to x=2 is 2-(-2)=4. Area of triangle = (1/2)base*height = (1/2)6*4 = 12
Saturday, June 9, 2012 at 7:32am by MathMate
perimeter problems math
janet built a 5-inch ny 7-inch rectangle A:what is the perimeter of janets rectangle? B:the perimeter of olivia's rectangle is 150% as long as janet's. what is the perimeter of olivia's rectangle? C. what is the area of janets rectangle? D.the area of walters ...
Tuesday, February 21, 2012 at 5:08pm by justin
Geometry
Determine whether triangle PQR is congruent to triangle STU given the coordinates of the vertices. Explain your conclusion. coordinates of triangle PQR P(0,3) Q(0,-1) R(-2,-1) S(1,2) T(1,-2) U(-1,-2)
Tuesday, December 14, 2010 at 5:05pm by Adryan
Math
Another need way to find the area of any triangle is Heron's formula, you can memorize it easy enough, so you can find the area of any triangle knowing the sides. http://mste.illinois.edu/dildine/heron/triarea.html
Monday, September 12, 2011 at 10:47am by bobpursley
geometry
Draw a line from the middle of one side to the opposite apex. That will give you a right triangle with the base being 18 inches and the hypotenuse being 36 inches. Use the Pythagorean Theorem to find the height of the triangle. Then use this formula: A = 1/2bh
Monday, January 31, 2011 at 8:04pm by Ms. Sue
Geometry. Grade 11
The area of the smllaer of two similar triangles is 1/9 the area of the larger triangle. Suppose one side of the triangle is 3.6m. What is the length of the corresponding side of the larger triangle? Suppose one side of the larger triangle is 36m. What is the length of the ...
Wednesday, December 9, 2009 at 2:03am by George L
Please help with a trapezoid - circle problem
A circle with radius 3 is inscribed in a isosceles trapezoid with legs of 10. Find the length of the smaller base. When I draw a diagram, calling the trapezoid ABCD with A and D at the bottom, I see that the length from where the altitude from B and C hits AC to D is 8 from ...
Monday, February 18, 2013 at 7:01pm by Knights
geometry
find the perimeter of the rectangle if the area is 6m+3m
Monday, March 18, 2013 at 5:52pm by Catrina
math 5th grade
Do you want to find the perimeter or the area?
Monday, February 4, 2013 at 8:35pm by Ms. Sue
math
Explain how you can use multiplication to find the perimeter of a square
Thursday, January 31, 2013 at 7:41pm by ryan
math
how to you find the perimeter of a octagon with side length 7.2cm
Tuesday, December 11, 2012 at 9:53pm by taliah
Geometry
PE~=PM, y=5x+5. Find the perimeter of the figure.
Tuesday, October 9, 2012 at 10:53am by Anonymous
Math
10*12 = s^2 Calculate to find s, then multiply by 4 for the perimeter.
Monday, July 16, 2012 at 3:47pm by PsyDAG
geometry
find the perimeter of a square if it measures 14 ft.
Wednesday, June 20, 2012 at 7:34pm by shemeka
college math
Find the perimeter of the square l = 6.66 yd
Friday, June 1, 2012 at 7:17pm by Lourane
Geometry
Find the perimeter of the square. Length is 6.66 yd
Wednesday, March 7, 2012 at 7:00pm by Sheilah
math
FIND THE PERIMETER FOR 4YD LONG, 12YD WIDE
Wednesday, February 15, 2012 at 10:29pm by THARUN
Math
Find the perimeter of the cord r=a(1+cos theta)
Sunday, February 27, 2011 at 1:10am by Current puestio
math
how do you find the least possible perimeter with a area of 48
Friday, December 31, 2010 at 11:50am by amari
Math
find the perimeter of a regular octagon with sides of 5.5cm.
Monday, October 18, 2010 at 4:13pm by Jerrry
math133
You're getting there. What numbers do you add to find the perimeter?
Thursday, October 15, 2009 at 9:39pm by Ms. Sue
Math
Find a polynomial for the perimeter and for the area. b+8=length b=width
Saturday, July 5, 2008 at 8:58pm by Mike
Math
To find the perimeter, add the four sides.
Wednesday, February 6, 2008 at 8:02pm by Ms. Sue
trig
In a right triangle the hypotenuse has length 10 and the the sum of the cotangents of all three angles of the triangle equals 2. What are the lengths of the other two sides of the triangle? (A) 5 and 5p3 (B) 5p2 and 5p2 (C) 1 and3 p11 (D) 4 and 2p21 (E) None of the above.
Sunday, May 8, 2011 at 11:56am by dat
writing to explain
The perimeter of rectangle Y is equal to its area. Rectangle Z has the same perimeter as rectangle Y. The length of rectangle Z is 5 inches an the width is 3 inches. Explain how you can find the length and width of rectangle Y.
Wednesday, March 7, 2012 at 11:40pm by crystal
Geometry-8th gr
Can you please help me with this question? 1.) Given: triangle ABC ~ triangle XYZ, m<A= 50 degrees, m<X= (2x +5y) degrees, m>Z=( 55 + y) degrees, and that m<B=(102-x) degrees. Find m<Z. Thanks.
Thursday, January 31, 2013 at 6:54pm by Mona
trig
refer to right triangle ABC with C = 90degrees. Given a= 2 and b=√5 Find the six trigonometric functions of A. and find the angles A and B
Monday, February 13, 2012 at 9:44pm by Mari
6th Grade Math
Formulas for a Triangle perimeter- a + b + c (add all sides) semiperimeter- a + b + c ÷ 2 (add all sides the divide by 2) area- base • height ÷ 2 (multiply base by heighth divide by 2) base- 2 • area ÷ height (2 by area divide by heighth) height...
Thursday, March 22, 2012 at 11:44pm by Z}12ih8z12{Z
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