Monday

April 21, 2014

April 21, 2014

Number of results: 27,720

**Math - incomplete**

total area = lateral area + area of bases The area of the base is the area of a triangle with perimeter of 40 inches. unless you say more about the triangle, it's not possible to determine its area. If it's an equilateral triangle, the just figure the height by using the side ...
*Monday, August 26, 2013 at 3:34pm by Steve*

**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.*

**geometry**

look at the triangle formed by the chord and the radii. Don't you have an equilateral triangle ? That would make the central angle = 60° So the area of the SECTOR is 1/6 of the area of the circle. If you subtract the area of the equilateral triangle you would be left with the ...
*Sunday, January 15, 2012 at 4:53pm by Reiny*

**math URGENT!!**

It can be shown quite easily that the triangle created by joining the midpoints of a given triangle is similar to the original, and exactly 1/4 of its area. There are several methods to find the area of a triangle if you know the coordinates of the vertices. Use the method you...
*Thursday, October 25, 2012 at 4:17pm by Reiny*

**Geometry**

If it is a rt triangle occupying less that i/2 of the circle: At = 2As, As = At/2. At = Area of the triangle. As = A shaded area between triangle and circle. At + As = pi*r^2/2 = 1/2 of a circle. Substitute At/2 for As: At + At/2 = 3.14*(1.5)^2/2, 1.5At = 3.53, At = 2.36. = ...
*Friday, April 29, 2011 at 9:24pm by Henry*

**math**

Triangle ADE is inside rectangle ABCD. Point E is half way between points B and C on the rectangle. Since AB is 8 cm and side AD is 7 cm. 1. what is the area of triangle ADE? 2. what is the ratio of the area of the triangle ABE to the area of triangle ADE? 3. What is the ratio...
*Sunday, April 14, 2013 at 10:05pm by natalie*

**pre algebra**

the midpoints of each side of triangle NOT are connected to make a smaller triangle inside triangle NOT. If the area of triangle NOT is 16 in squared, what is the area of the smaller triangle?
*Thursday, January 13, 2011 at 5:58pm by jen*

**math**

Area of a Triangle. The area in square meters of a triangle is given by A(x)=x^2+5x+6 a)Find A(5) b)If the length of the triangle is x+3 then what is the base of the triangle?
*Wednesday, March 4, 2009 at 1:13pm by Debbie*

**Algebra**

How do you find the area of a shaded area in a triangle and assume the area of the largest triangle is one unit? If the largest (outer) triangle has area =1, and it has a base length b and height h, then (1/2) b h = 1 bh = 2 Then use whatever information you have on the base b...
*Sunday, September 17, 2006 at 8:20pm by Candace*

**Math**

An isosceles triangle and a rectangle share a base. The area of the rectangle is 4 times the area of the triangle. The area of the triangle is 60 cm^2 and its height is 15 cm. Find the dimensions of the triangle.
*Friday, February 11, 2011 at 5:32pm by Mary*

**Math**

An equilateral triangle s divided into 4 congruent equilateral triangles. What method can be used to find the area of the larger equilaterl triangle give the area of one of the smaller triangles? F. Multiply the area of the larger equilateral triangle by 4 G. Multiply the area...
*Tuesday, December 7, 2010 at 9:32pm by Danny*

**math**

because of the symmetry of the parabola, the base of the triangle must be parallel to the x-axis if the two sides are to be equal to form an isosceles triangle. let the point of contact in the first quadrant be (x,y) so the base of the triangle is 2x and its height is y Area...
*Sunday, March 13, 2011 at 4:18pm by Reiny*

**maths**

Draw lines joining the centers of the circles. That is an equilateral triangle with side 10. Area of triangle is 1/2 * 5 * 5√3 = 25/2 √3 Now, the angles of the triangle are all π/3, so, since the area of a sector of a circle is a = 1/2 r^2 θ, each sector ...
*Wednesday, February 13, 2013 at 11:52am by Steve*

**srinivas**

without loss of generality, we can assume AB < BC Let q be the "base" of the triangle. area = p*q*sinB greatest area when B = 90°, or the triangle is a right triangle with legs p and q. So, the greatest area is 1/2 pq
*Tuesday, November 20, 2012 at 11:06am by Steve*

**Algebra 1 (?)**

If you know the area of the equilateral triangle, Area = 1/2 ch Therefore h = (2c)area Do you know the area? If it is a right triangle, you have the Pythagorean Theorem. a^2 + b^2 = c^2, where c is the hypotenuse. However, there is no way we can find the "accompanying figure."
*Friday, May 3, 2013 at 5:26pm by PsyDAG*

**Math**

Triangle A has an area of 19,00cm squared and similar triangle B has an area of 118.75cm squared. Determine what scale factor makes triangle B an enlargement of triangle A
*Thursday, February 28, 2013 at 1:21pm by Kim*

**geometry**

figure one triangle. Area=1/2 b*h but each interior angle of the triangle is 60 deg, so b/2h=tan30 then total area=6*area of one triangle.
*Sunday, October 3, 2010 at 8:18pm by bobpursley*

**pre-algebra**

When designing a pattern, Erica rotated a triangle 90 degrees about the midpoint of one side to create a second triangle. If the area of the original triangle is 48 square inches, what is the area of the second triangle?
*Thursday, February 23, 2012 at 6:46pm by Lola*

**pre-algebra**

When designing a pattern, Erica rotated a triangle 90 degrees about the midpoint of one side to create a second triangle. If the area of the original triangle is 48 square inches, what is the area of the second triangle?
*Thursday, February 23, 2012 at 6:46pm by Anonymous*

**math**

A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? (1 point)
*Monday, January 14, 2013 at 11:35am by Prime*

**math**

A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? Can someone plz help i don't understand this question.
*Sunday, November 25, 2012 at 10:23pm by Hager*

**math**

okay, so the base of the triangle is (b). that means the height of the triangle will be (b+4). since the area of a triangle is (basexheight) and the area is already given as 22.5, then you can find (b) by plugging in the area formula. (b) x (b+4)= 22.5 b^2 + 4b= 22.5 b^2 + 4b...
*Wednesday, May 9, 2012 at 1:04am by Rava*

**math**

Let x = length of side of square thus area of square is A,square = x^2 recall that area of triangle is given by A,triangle = (1/2)b*h where b is the base and h is the height. The base and height of the triangle AMN are equal, which is (1/2)x. Thus, A,triangle = (1/2)*[(1/2)x...
*Saturday, May 19, 2012 at 10:07am by Jai*

**math**

There are a number of prism shapes. In all cases the surface area of a prism is the area of the ends plus the area of the sides. Lets look at a regular triangle prism (i.e. a toblerone shape) with sides a and length l. The ends are equilitaeral triangles so the area is a^...
*Monday, April 27, 2009 at 10:00am by Dr Russ*

**geometry**

14. Question says that there is a triangle with a base of x units and height h units and two sides of length 10 units. Answer the following questions: • Draw a representation of this situation (the triangle). • Find a formula for h in terms of x. h = square root {10^2-(x/2)^2...
*Tuesday, July 10, 2012 at 3:23am by nisha*

**5th grade**

For each right triangle, draw the rectangle made by drawing sides opposite the two shorter sides in the triangle. Find the area of each rectangle. 9cm height 4cm width How does the area of each rectangle relate to the area of either triangle inside it?
*Wednesday, December 1, 2010 at 7:47pm by Danielle*

**Math : Geometry : Similar triangles**

two right triangles are similar. the of the larger triangle is 4 times as long as the base of the smaller triangle. the height of the longer triangle is 16cm. the area of the smaller triangle is 6cm^2. What is the area of the long triangle?
*Wednesday, December 9, 2009 at 1:38am by Louise.T*

**Math- HELP**

There is a triangle inside of a circle. I have to find area of the shaded region which is the circle. So i would have to substract the area of the triangle from the area of the circle. the radius of the circle is 3 inches. I found the area of the circle..it is 28.27 in.^2 I am...
*Thursday, December 2, 2010 at 5:56pm by MK*

**math**

It's too much trouble to look for it, Jessica, but I think we have done this problem for you in the last couple of days. Perhaps it was another student. area triangle = area rectangle. rectangle = 8" x 12" = 98 in2. area triangle = 96 in2. area triangle = 1/2*base*height. 96 ...
*Thursday, October 4, 2007 at 10:11pm by DrBob222*

**Geometry**

Triangle UVW is the pre-image of triangle RST with a scale factor of 3. Find the area of triangle UVW if the area of triangle RST is 9 cm2.
*Wednesday, May 2, 2012 at 10:54am by Lindsey*

**mathURGENT!!!!**

The triangle formed by connecting the midpoints is similar to the original triangle but with all lengths half the original. Therefore the area of the triangle is four times the area of the little one inside (1/2) b h = 4 (1/2)(b/2)(h/2)
*Monday, October 22, 2012 at 5:27pm by Damon*

**Geometry**

Given: X, Y, and Z are the midpoints of teh sides of triangle ABC. Find rhe ratio of the area of triangle XYZ to the area of triangle ABC
*Monday, February 22, 2010 at 9:35pm by TIMMYRA*

**geometry**

the ratio of the area of a smaller triangle to the area of a larger triangle is 1:4. if the are of the smaller triangle is 30, find the area of the larger triangle.
*Tuesday, November 8, 2011 at 10:35am by :)*

**college geometry**

Given: right triangle ABC with right angle at C, AC=22 and BC=6.Draw altitude CD where D is o hypotenuse AB. What is the ratio of the area of triangle ADC to the area of triangle CDB?
*Sunday, December 12, 2010 at 11:43pm by Kathy*

**geometry**

the perimeter of an isosceles triangle is 42cm and its bases is(3/2) times each of the equal sides .find the length of each side of the triangle ;area of the triangle and the height of the triangle.
*Thursday, December 30, 2010 at 9:44am by Anonymous*

**geometry ratio**

make a good sketch, let each side of the equilateral triangle be 2 then the height of the equilateral triangle .... using the 30-60-90 triangle ratios, is √3 area of triangle = (1/2)(2)√3 = √3 You should have a small equilateral triangle sitting on top of the...
*Thursday, November 7, 2013 at 8:05am by Reiny*

**math**

M and N are the midpoints of the sides of a square. What is the ratio of the area of triangle AMN to the area of the complete square? But the answer has to be in a ratio which is the area of a triangle to the area of the complete square. Also the triangle is in the square at ...
*Saturday, May 19, 2012 at 10:07am by alandra*

**geometry**

The perimeter of a triangle, its area, and the radius of the circle inscribed in the triangle are related in an interesting way. Prove that the radius of the circle times the perimeter of the triangle equals twice the area of the triangle.
*Sunday, April 11, 2010 at 9:48pm by sarah A*

**math**

Let P and Q be the points on the sides AB and BC of a triangle ABC respectively such that BP = 3PA and QC = 2BQ. Let K be the midpoint of the segment PQ. Prove that the area of the triangle AKC is equal to 11S/24, where S is the area of the triangle ABC.
*Saturday, August 7, 2010 at 1:35am by mathsen*

**geometry**

Theres a circle with an equilateral triangle in the middle. The traingles edges all touch the circle. The radius of the circle is 8 meters. How do I find the area of the triangle? Sorry The triangles edges dont touch the circle, the points do. Did you mean the vertices of the...
*Wednesday, April 4, 2007 at 8:53am by Emily*

**Math**

the triangle can be formed by joining alternate vertices of the hexagon. So, if the hexagon has side s, the triangle has side s√3 Now the hexagon consists of sic equilateral triangles of side s, so its area is 6(s^2 √3/4) = 3√3/2 s^2 The triangle has area &#...
*Friday, December 13, 2013 at 2:31pm by Steve*

**Math**

The dimensions of triangle B are three times the dimensions of triangle A. The area of triangle B is 72 cm2. What is the area of triangle A? 16 cm2 8 cm2 36 cm2 24 cm2 My answer 4th one?
*Tuesday, January 21, 2014 at 7:02pm by Anonymous*

**algebra/math**

I have this figure of a square QRST with an equilateral triangle PQT sitting on top of the square. The figure looks like a little house... My question is if PQ equals 6 cm, then what is the area of the square? Do I need to find the area of the triangle to figure this out? Do I...
*Wednesday, March 11, 2009 at 1:45pm by Mike 50*

**Geometry**

There is a formula for the area of a triangle in terms of the side lengths. Don't ask me to derive it. Here it is: Let s = (a +b +c)/2 a,b and c are the side lengths. For your triangle, s = 24 Area = sqrt[s*(s-a)*(s-b)*(s-c)] = sqrt[24*9*9*6) = 108 square units Check: Your ...
*Sunday, January 16, 2011 at 12:44am by drwls*

**math/geometry**

the area of one triangle is 9dm^2 and its perimeter is 4x-4. The area of a similar triangle is 4dm^2 and its perimeter is 2x+6. Find the perimeter of each triangle.
*Tuesday, November 11, 2008 at 11:07am by katie*

**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...
*Saturday, December 7, 2013 at 12:51pm 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...
*Saturday, December 7, 2013 at 2:06pm by Lily*

**(:**

help with Quadratic Equations and Functions: 5)Solve 2x2 +6x = 4 by completing the square. 6)Solve 3x2 - 6x- 24 = 0 using the quadratic formula. 7)The area of a circle is 25 in2. What is the radius, including the units? Area of a circle is ¢³r^2. 8)The triangle has an area of ...
*Sunday, May 20, 2012 at 9:23pm by neveah gomez*

**maths-urgently needed**

Let the corners of the square be at (0,0),(1,0),(0,1),(1,1) y=1-2x intersects y=(1-x)/2 at (1/3,1/3) So, in each of 4 quadrants, the exterior of the octagon is a trapezoid and a triangle trapezoid has area 3/16 triangle has area 1/48 sum has area 5/24 The 4 have area 5/6 The ...
*Tuesday, February 5, 2013 at 7:07am by Steve*

**Math**

The area A of a triangle is given by the formula A=1/2bh If the base of the triangle with height 12 inches is doubled, its area will be increased by 48 square inches. Find the base of the orignial triangle.
*Wednesday, February 10, 2010 at 5:41pm by Colin*

**Math**

The area A of a triangle is given by the formula A=1/2bh If the base of the triangle with height 12 inches is doubled, its area will be increased by 48 square inches. Find the base of the orignial triangle.
*Wednesday, February 10, 2010 at 10:24pm by Colin*

**geometry triangle **

1. can you tell me how to find the area of an equilateral triangle ? its sides are all 8 . . 3. i guess this is a right triangle . . how to find its area and perimeter if one side is missing ? tell me please? i want to know thank you so much
*Tuesday, October 22, 2013 at 9:20am by kellly*

**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...
*Saturday, December 7, 2013 at 3:50pm by Lily*

**Calculus**

An isosceles triangle is to be drawn with its two equal sides of legth 10. What is the maximum possible area for the triangle? [Note: The area of a triangle is given by half the product of two sides with the sine of the included angle.]
*Monday, November 15, 2010 at 10:01pm by MEG*

**Math**

In the sequence below, each shaded triangle, after the first is 1/4 the area of the preceding shaded triangle. What is the ratio for the shaded area of the 5th triangle?
*Friday, February 22, 2013 at 9:15am by Crystal*

**Math**

Multiply the area of the triangle by $1.50 per square yard. There is a formula for the araa of a triangle using the lengths of the three sides. You could also use the law of cosines to get any of the angles of the triangle, and use that angle to get the altitude to use with ...
*Monday, June 9, 2008 at 10:29am by drwls*

**maths**

2 right angled triangles = 1 equilateral triangle. You can pretty much split it down the middle and you'll see the 2 triangles from. The formula for a right angle triangle is: (b x h)/2 = area If we were solving for 1/2 the triangle we know that the base is 5 cm, the height is...
*Tuesday, March 12, 2013 at 4:02pm by Lena*

**geometry**

right triangle ABC with right angle C, AC=22 and BC=6, altitude CD where D is on hypotenuse AB. What is the ratio of the area of triangle ADC to the area of triangle CDB? Write ratio as n:1 and round n to the nearest hundredth.
*Tuesday, November 30, 2010 at 6:08pm by suzy*

**Math**

Triangle XYZ is dilated by a factor 1/2. What is the ratio of the area of triangle XYZ to the area of it's image, triangle X'Y'Z'?
*Wednesday, April 6, 2011 at 6:54pm by Airelle*

**math**

You know the area of a triangle is A=1/2bh. So, to find how much larger the 2nd triangle is compared to the first, you would first find the area of the first triangle. Area of 1st triangle: A=1/2bh A=1/2(16.5)(8) A=66 feet Then find the area of the second triangle: A=1/2bh A=1...
*Tuesday, May 17, 2011 at 8:04pm by Annonymous*

**math Ms. Sue**

A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? 39 m2 169 m2 117 m2 142 m2 I think it is A...?
*Thursday, November 8, 2012 at 2:50pm by Deborah*

**Geometry**

What is the ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if XY is similar to AC?
*Monday, May 17, 2010 at 9:51pm by Kaley *

**Geometry **

What is he ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if XY is similar to AC, and BY=3, YC=2 ?
*Monday, May 17, 2010 at 9:54pm by Kaley *

**Geometry**

What is the ratio of the area of triangle XBY to the area of triangle ABC for the given measuremnts, if XYis similar to AC, and BY=2 and BC=4?
*Monday, May 17, 2010 at 10:19pm by Kaley *

**math**

What is the ratio of the area of triangle XBY to the area of triangle ABC for the given measuremnts, if XYis similar to AC, and BY=2 and BC=4?
*Tuesday, May 18, 2010 at 12:23am by buggy*

**math**

Find the ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if BY = 3, YC = 2
*Monday, June 6, 2011 at 7:40pm by Anonymous*

**geometry**

Which composition would produce an image triangle whose area is not equal to the area of the original triangle?
*Sunday, December 4, 2011 at 7:06pm by jen*

**math!!**

Triangle area: A = bh/2 A = (16.5 * 8)/2 A = 132/2 A = 66 square feet Find the area of the smaller triangle the same way.
*Tuesday, May 17, 2011 at 8:29pm by Ms. Sue*

**Math**

If the area of a triangle is one-ninth of the area of another triangle, how do the perimeters of the two triangles compare?
*Wednesday, February 15, 2012 at 9:17pm by Eliza*

**math**

1. area = (1/2)(8)(7) = 28 2. triangle ABE : triangle ADE = 1 : 2 3. area CDE : rect ABCD = 1 : 4
*Sunday, April 14, 2013 at 10:05pm by Reiny*

**geometry**

the area of the first triangle is 22 sq feet. if the scale factor of two similar traingles if 3, what is the area of that second triangle>?
*Tuesday, January 18, 2011 at 9:19pm by dylan*

**maths**

The surface area = 2 triangles + 3 rectangles the area of the rectangles is easy 5(9) + 5(12) + (15) for the area of the triangle, did you notice 15^ = 9^2+12^2 making it right-angled? so the area of one triangle is (1/2)(9)(12) = 54 Add up all the parts
*Wednesday, March 28, 2012 at 1:36am by Reiny*

**geometry!! urgent (math)**

The base area equals six times the area of an equilateral triangle with side length 20 cm (since six equilateral triangles make up a hexagon). Multiply that area by the base edge height for the volume. Add twice the base area to the area of the six 20x16 cm faces to get the ...
*Thursday, September 4, 2008 at 11:13pm by drwls*

**analytic geometry helps are appreciated**

So the "legs" of the triangle would be 2 I believe. And the area of a triangle is (Length*Width)/2. So I think the area should be 2units^2. I'm not sure if that's what you were asking.
*Wednesday, February 27, 2013 at 10:07pm by Sarah*

**Math**

In the figure below, the diagonal line divides the rectangle into halves Which statement about the figure is NOT true? On the rectangle the width is 3cm and the length is 4cm. The line that divides the rectangle is 5cm F. The perimeter of the rectangle is 14cm G. The area of ...
*Monday, January 30, 2012 at 6:34pm by Andrew*

**math**

Using the formula for the area of a triangle, A = 1/2 bh, find the area of this triangle pictured. The base is 2x + 16 and the height is 4x. I just don't know how to work the problem.
*Monday, January 17, 2011 at 6:31pm by Alyssa*

**math**

The triangle inscribed within square ABCD has, as its base, side AD, and has a height of 6 cm. If the area of the triangle is 21 cm2, what is the area of the shaded region?
*Friday, September 13, 2013 at 10:39am by Anonymous*

**math**

Well the area will be the sum of the area of a rectangle and either 1 or 2 triangles depending on what way you draw it. The area of the rectangle will be height*shorter length = 4*5 = 20 The area of the triangle will be (1/2)*base*height base of triangle in this case = longer ...
*Friday, December 5, 2008 at 7:48pm by Cianán*

**Geometry**

It all depends on what is given. If the base and the area are given, then you can solve for h in Area=base*height If the three sides of a triangle are given, you would have to calculate the area of the triangle first using s=(a+b+c)/2 Area=sqrt(s(s-a)(s-b)(s-c)) If angles and ...
*Friday, October 8, 2010 at 6:14pm by MathMate*

**math**

an isosceles triangle has a vertex at the origin. Determine the area of the largest such triangle that is bound by the function x squared + 6y = 48 and explain why this is infact the maximum area.
*Sunday, March 13, 2011 at 4:18pm by Tomas*

**CAL**

The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 4000 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 11500 centimeters and the area is ...
*Saturday, July 9, 2011 at 7:08pm by Laura Le*

**CAL**

The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 4000 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 11500 centimeters and the area is ...
*Sunday, July 10, 2011 at 4:25am by lan*

**Math**

The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 4500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 9000 centimeters and the area is 87000...
*Tuesday, August 23, 2011 at 1:32am by Ning*

**Calculus Please help!**

The altitude of a triangle is increasing at a rate of 2500 centimeters/minute while the area of the triangle is increasing at a rate of 3500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 7000 centimeters and the area is 87000...
*Friday, February 28, 2014 at 2:51pm by ALI*

**Geometry**

The height of the equilateral triangle will be a median in that triangle, and the centroid will be the centre of the circle. That centroid splits the median in the ratio of 2 : 1 so the whole median, or the height of the triangle will be 9 in. Half of the triangle will be a 30...
*Monday, May 17, 2010 at 4:54pm by Reiny*

**Pre-Calc**

I made a sketch, and y = |9x| consists of two lines first: y = 9x starting at the origin, and the second: y = -9x also starting in the origin, resulting in a graph looking like a V If I understand the question correctly, you now want the area of the triangle in the second ...
*Tuesday, December 7, 2010 at 11:19pm by Reiny*

**Math help**

The formula works all the time for a regular polygon. However, the way you wrote the formula makes no sense. You cannot use the same variable "a" for area and for apothem. Furthermore, we cannot draw diagrams in this forum_search_20140419, and lastly you did not give the ...
*Sunday, February 21, 2010 at 10:10pm by Reiny*

**Geometery**

If no height is given for the triangle, you cannot find the area. Does the triangle share a side with the rectangle? Could it be that the height of the triangle is one of the sides of the rectangle? Your area for the rectangle is correct.
*Sunday, April 21, 2013 at 6:43pm by rbowh*

**maths please help**

how do you find the isoperimetric quotient of an n sided figure? my side lengths are 5cm i have split it in to triangles so 360/n is the central angle then to work out area of singular triangle its 1/2 base times height height is something like tan 180/n =2.5 /height length ...
*Thursday, October 12, 2006 at 3:58pm by Spirit*

**Maths**

Base of the triangle =13cm altitude of the triangle=12cm Area of the triangle=1/2(b)(a) ' =1/2(5)(12) =30cm2
*Wednesday, November 30, 2011 at 12:35pm by anirudh the great*

**geometry**

in a triangle D =h+4, area of triangle is 120 sq .cm . then find the base and height of triangle
*Thursday, February 7, 2013 at 2:01am by msmadhushree*

**Geometry**

Find the area of each equilateral triangle. The triangle has 12cm sides. The triangle has 10in altitudes.
*Monday, September 30, 2013 at 10:48pm by George*

**Maths**

the circle centers form an equilateral triangle with side 10. area of triangle is thus √3/4 10^2 = 25√3 each side of the triangle subtends an angle of π/3, and the segment formed has area 1/2 *25*(π/3-√3/2) = 25/12 (2π-3√3). Subtract the ...
*Monday, December 31, 2012 at 10:59pm by Steve*

**maths**

1.how many non congruent right triangles with positive integer leg lengths have areas that are numerically equal to 3 times their perimeters? 2.a triangle with side lengths in the ratio 3:4:5 is inscribed in a circle of radius 3.what is the area of the triangle? 3.what is the ...
*Tuesday, May 7, 2013 at 1:57am by ramesh reddy*

**Math**

5)Solve 2x2 +6x = 4 by completing the square. 6)Solve 3x2 - 6x- 24 = 0 using the quadratic formula. 7)The area of a circle is 25 in2. What is the radius, including the units? Area of a circle is ¢³r2. 8)The triangle has an area of 14 in2. Determine the lengths of the sides of ...
*Sunday, May 20, 2012 at 10:03pm by Julissa*

**geometry**

The height of triangle ACE is 12 and base AE=20. A rectangle is inscribed in triangle ACE as shown in the diagram a) express the rectangle's area as a function of x and y b)Use the fact that triangle ACE is similar to BCD to write y as a function of x. c)express the rectangle'...
*Tuesday, August 30, 2011 at 5:13pm by jay*

**Algebra 8th grade please help!!!!!!**

A right triangle has an area of 13 m2. The dimensions of the triangle are increased by a scale factor of 3. What is the area of the new triangle? Please help!!!! a)39 m2 b)169 m2 c)117 m2 d)142 m2
*Wednesday, November 28, 2012 at 1:56pm by April :)*

**Math**

Two vertices of a right triangle are (0,1) and (0,6). The area of the triangle is 10 square units. Which point could be the third vertex of the triangle?
*Wednesday, April 16, 2014 at 11:05pm by Shohanur*

**calculus**

from the data rectangle: width = x length = 4x triangle: base = x-2 height = 4x area of rectangle = x(4x) = 4x^2 area of triangle = (1/2)(x-2)(4x) = 2x^2 - 4x given: 4x^2 - (2x^2 - 4x) = 30 2x^2 + 4x - 30 = 0 x^2 + 2x - 15=0 (x+5)(x-3) = 0 x = -5 (not possible) or x = 3 area ...
*Wednesday, September 8, 2010 at 10:46pm by Anonymous*

**Pre-Algebra**

A triangle is enlarged by a scale factor of 10/3. a) If the perimeter of the copy is 36 meters, find the perimeter of the original triangle using the proportion 10/3. b) If the area of the copied triangle is 48 meters squared, use a proportion to find the area of the original ...
*Wednesday, March 5, 2008 at 10:35pm by Joy*

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