Number of results: 115,379
A rectangle and a triangle have equal areas. The length of the rectangle is 12 inches, and its width is 8 inches. If the base of the triangle is 32 inches, what is the length, in inches, of the altitude drawn to the base?
Tuesday, April 1, 2008 at 1:34am by Aaron McQuady
the base BC of a triangle ABC is divided at D so that BD=1/3 BC .prove that ar(triangle ABD)=1/2 ar (triangle ADC)
Saturday, March 16, 2013 at 10:17pm by BAISHALI
a pentagon has sides 2N+7,3N+2,6,7N,5N-6.If the perimeter is 180,find the length of each side.
Monday, July 19, 2010 at 12:05pm by tintin
The sides of a triangular lot are represented by x, 2x, and 3x + 2. Find each side if the perimeter is 362 feet.
Wednesday, May 18, 2011 at 3:05pm by Kay
If I have a base of 144" and sides of an equilateral triangle measuring 7'3", what is the height of the triangle?
Sunday, September 5, 2010 at 6:55pm by Boyd
The area of a triangle is 2x^2+5x+3. The height is 4x+6. Determine the base of the triangle.
Thursday, October 13, 2011 at 9:28am by Rebecca
7th grade Math
Write and simplify an expression for the perimeter of the rectangle. side A=x+6 Side B=4x-5. Thank you!
Sunday, September 12, 2010 at 3:43pm by CJ
Math - Triangles
An isosceles triangle has an interior angle of 26 degrees. Which of the following is a possible degree measure for one of the other interior angles of the triangle? a) 52 degrees b) 64 degrees c) 78 degrees d) 104 degrees e) 128 degrees
Tuesday, September 10, 2013 at 11:08pm by Venus
The sum of the lengths of the sides of triangle ABC is 25 in. The lengths of sides AB and BC are 9 inches and 8 inches. Find the length of side AC and classify the triangle.
Tuesday, March 15, 2011 at 5:59pm by Portia
Draw all rectangles with an area of 51 square cm with whole number base and height. Find the perimeter of each rectangle
Thursday, September 1, 2011 at 5:40pm by Mila
cut the triangle int two identical right triangles by drawing an altitude from the 48 degree corner to the base. half the length of the third side/18 = sin (48/2)
Thursday, March 25, 2010 at 10:00pm by Damon
In triangle ABC, CD is both the median and the altitude. If AB=5x+3, AC=2x+8, and BC=3x+5, what is the perimeter of triangle ABC?
Monday, October 4, 2010 at 5:16pm by Anonymous
algebra 1 b
The sides of a triangle have measures of x, x, and y, and the perimeter of the triangle is 46. The measure y is 4 centimeters longer than the measure x. Write the solution for this as an ordered pair.
Tuesday, October 26, 2010 at 1:02pm by Daniel
Connecting the mid-points of the triangle sides creates a triangle with sides of half the lengths of the given triange making the perimeter 10.5.
Sunday, April 3, 2011 at 11:22am by tchrwill
Algebra 1 (Reiny)
The measures of the sides of a triangle are shown as polynomials. The measures are: 2s^3 + 4; 5s; 4s^2 + 1. Write a polynomial to represent the perimeter of the triangle.
Thursday, February 20, 2014 at 8:21pm by Anonymous
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
Find the formula for the described function and state its domain. An open rectangular box with a volume of 8 cubic meters has a square base. Express the surface area of the box as a function of S(x) of the length x of a side of the base.
Wednesday, October 27, 2010 at 9:58pm by DJ
The slope is the side opposite the base angle divided by the other side. Normally, on a graph, this is the same as saying side opposite divided by side adjacent.
Wednesday, August 13, 2008 at 8:26pm by bobpursley
1. The radius of the circumscribed circle of the triangle ABC is 15 cm. Given that B is a 49-degree angle, find the length of side AC. continuation - The radius of the circumscribed circle of the triangle ABC is r cm. Given that B is a beta-degree angle, find the length of ...
Monday, April 12, 2010 at 10:24am by sally K
If we lay one side along the x-axis, and one vertex at (0,0), and let the side be of length 1, the triangles sides can be written as y=0 y=√3x y=√3(1-x) Assuming the obvious position where one side of the square lies along one side of the triangle, from (a,0) to (...
Friday, December 13, 2013 at 4:12pm by Steve
ABCA1B1C1 is a prism which has regular triangles in the bases. The side of the prism has the length "a". The side AA1 makes equal angles with the sides of the base AB and AC, these angles have the value "alfa". We know that AA1 has the length "b". I need to find out the height...
Sunday, November 30, 2008 at 12:45pm by Frost Boost
if two triangles are similar, what can you say about the ratios of the two side lengths within one triangle and the ratios of the corresponding side lengths in the other triangle? HELP ASAP!! THANK YOU TO WHOEVER HELPS!!
Thursday, February 16, 2012 at 8:44pm by Savannah
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
how do I find the missing side of a right triangle?
Sunday, March 9, 2008 at 5:46pm by leslie
to find the length of a side of a triangle b=8 and c=10 then a=?
Wednesday, December 7, 2011 at 8:51pm by mandy
Find the length of right side of a triangle if a=2,b=4 so c=?
Wednesday, December 7, 2011 at 11:41pm by mandy
Solve the triangle. Round to the nearest tenth. B=54deg a=42 c=6.5 1. I found length of b using law of cosine and got 36.2 2. Using side of b, I used the law of sine to get angle A = 28.2 3. I added B+A and subtracted from 180 to get angle C = 127.8 which DOES NOT make sense ...
Monday, December 7, 2009 at 12:47am by Vincent
if two triangles are similar, what can you say about the ratios of the two side lengths within one triangle and the ratios of the corresponding side lengths in the other triangle? Thank you anyone who helps :D
Thursday, February 16, 2012 at 8:53pm by Leda
Area of a triangle: Area=(base * height)/2 Area of a trapezoid: Area=height * (b1 + b2)/2 where: b1=length of top side b2=length of bottom side
Saturday, January 5, 2008 at 10:45am by Quidditch
if the perimeter of a pentagon is 60 com, what must its dimensions be to maximize area? the pentagon has two sides equal to ecah other, (vertical side) the the base and top are all equal to each other
Wednesday, February 20, 2013 at 6:21pm by tommy
The sum of the lengths of the sides of triangle ABC is 38in. The length of sides AB and BC are 14 inches and 11 inches. Find the length of side AC and classify the triangle.
Monday, March 5, 2012 at 8:12pm by Elaina
the apothem is the altitude of an equilateral triangle of side 10: 5√3 area = 1/2 apothem * perimeter = 1/2 * 5√3 * 10 = 25√3
Monday, January 14, 2013 at 11:35pm by Steve
Hi aisha, Let's start with formulating an algebriac expression for the perimeter. We know that perimeter of rectangle = 2(length) + 2(width). Since we don't know length or width, we let x be the width of the rectangle. Hence length = 5x-3 [because length = (5 X width) - 3]. So...
Wednesday, November 24, 2010 at 8:04am by J
Let a side have ratio value 5. Let b side have ratio value 12. Let c side have ratio value 13. add the ratios of the sides: 5 + 12 + 13 = T It is given that the perimeter (all sides added) is 15 inches. The length of each side has the same relationship to its ratio as the ...
Tuesday, August 18, 2009 at 11:52pm by Quidditch
how do I find x, when the base of a triangle is 22ft and the area is 165 sq ft.?
Friday, July 13, 2012 at 2:37pm by gracie
Find the area of a triangle if its base has a measure of 2x + 16 and its height is x + 4
Friday, August 24, 2012 at 1:41pm by Anonymous
Find the area of an equilateral triangle whose base is 10 cm.
Tuesday, March 12, 2013 at 4:02pm by Shane
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.
Friday, November 25, 2011 at 11:28am by Ryan
the perimeter of a rectangle is 72. the base is 3 times the height find the area of the rectangle
Thursday, October 3, 2013 at 12:12am by w
It is possible to have a triangle with those side lengths, but it would not be a RIGHT triangle, because the Pythagorean theorem is not obeyed. 12^2 + 14^2 does NOT = 18^2 The hypotenuse (longest side) would have to be sqrt340 = 18.439
Monday, August 23, 2010 at 3:38am by drwls
Well, I guess it doesn't really matter. Ok it helps if you draw your triangle, but you don't necessarlly have to. You know that A must be less than 90 and that its sin= 3/5. sin= opposite side of the angle/ the hypot. If you drew a triangle you'll notice that its a 3,4,5 ...
Monday, February 8, 2010 at 1:56pm by Amber
If two triangles are similar,what can you say about the ratios of the two side lengths within one triangle and the ratios of the corresponding side lengths in the other triangle?
Sunday, November 26, 2006 at 1:53pm by chemiii
If two triangles are similar, what can you say about the ratios of the two side lengths within one triangle and the ratios of the corresponding side lengths in the other triangle?
Thursday, December 6, 2007 at 7:45am by bbb
area of each square: 144/4=38 side of each square s =38/4=9.5 Now the perimeter of the three side by side is P=ends+sides=2s+6s=8s
Thursday, April 11, 2013 at 9:07pm by bobpursley
A triangle has sides w/ lengths of 3x, 5x, and 8x. All of the sides add up to 180. Express the perimeter of the triangle in terms of x. PLEASE HELP!!!!!
Sunday, January 2, 2011 at 4:35pm by Gigi
You can expand the left-hand side and transfer the 45 to the left to make a quadratic equation which you can solve by factoring. You can also find a solution by inspection, noting that 5-1=4, and if you can find two factors of 45 that differ by 4, then these factors are the ...
Thursday, March 11, 2010 at 8:11pm by MathMate
square A=S^2, P=p (side of the square must be S, p=4(S)) Regular Hexagon P=T and side=h (side is total perimeter divided by the sides of the hexagon (6)) therefore, h+p in terms of S and T. (P/6)+ 4S
Saturday, June 19, 2010 at 9:09am by Lucy
Name the shape
height X base 1 + base 2 divided by 2 triangle i think i am not possitive.
Wednesday, March 28, 2007 at 3:32pm by Amanda
An isosceles triangle has two sides of length w that make a 2á-degree angle. Write down two different formulas for the area of this triangle, in terms of w and á (Greek alpha). By equating the formulas, discover a relation involving sin 2á, siná, and cosá.
Monday, April 12, 2010 at 7:25pm by Lydia
What is the area of a hexagon all angles are right angles top 18 in side 20 in other side hook 12 in and side hook 6 in also what is the perimeter?
Tuesday, January 15, 2013 at 10:20pm by noahc
first, 1 cm is not 3 inches, I dont know why a teacher would tell you to use that. Maybe they think the world is whole numbers. Itis closer to 1 inch is 3 cm (actually 2.54cm) A yield sign is a triangle, if I remember. the perimeter is 12 inches, so half the perimeter is 6 ...
Wednesday, April 17, 2013 at 7:19pm by bobpursley
Data: á = 32 degrees, side a = 2.5 feet and side b = 4 feet 1. Identify the swinging side and the fixed side in a possible triangle. 2. Compute the length of the shortest swinging side that will construct a triangle containing the data. (compute the length of h) 3. How many ...
Sunday, April 13, 2008 at 6:01am by dena
Math - Calculus I
Draw a side view of the situation (The cone will look like an isosceles triangle with a rectangle (the cylinder) sitting on its base and touching the sides) let the radius of the cylinder be r and let the height of the cylinder be h Look at the small right-angled triangle at ...
Thursday, December 5, 2013 at 9:36pm by Reiny
geometry - incomplete
Missing info. The pyramid could be skinny, with tiny base, or fat and flat, with huge faces. Need the volume or the perimeter of the base, or the slant height or something.
Tuesday, July 23, 2013 at 1:30pm by Steve
Triangle GHI is an isosceles triangle. H is the vertex. If the measure of H is 73 degrees what is the measure of G? A.73 B.17 C.34 D.104 A)73 degrees?
Tuesday, February 26, 2013 at 5:38pm by Lance
Triangle GHI is an isosceles triangle. H is the vertex. If the measure of H is 73 degrees what is the measure of G? A.73 B.17 C.34 D.104 A)73 degrees?
Tuesday, February 26, 2013 at 6:07pm by Lance
how many lines of symmetry does an isosceles right triangle have? draw a diagram to illustrate
Friday, May 8, 2009 at 5:06pm by puppy101
Prove that no isosceles right triangle exists whose sides are integers.
Saturday, February 2, 2013 at 3:12am by Barb
If the runner is at distance x from home plate, the distance to 2nd base is d^2 = (90-x)^2 + 90^2 so, 2d dd/dt = -2(90-x) dx/dt when he's halfway there, x=45, so d = √(45^2+90^2) = 45√5 since dx/dt = 21, 45√5 dd/dt = -45*21 dd/dt = -21/√5 3rd base is ...
Tuesday, October 8, 2013 at 10:32pm by Steve
area an perimeter
a parallelogramhas an area of 4yd squared the height is 1yd find the base
Sunday, September 25, 2011 at 1:15pm by margie
Math- Geometry Proofs
What are some ways to prove that a triange is isoscles? i have to make a two column proof based on a problem. What is the exact problem I need help with my geometry homework. We are doing proofs and i need some help because proofs are really hard!! def. isosceles -or- if two ...
Tuesday, November 21, 2006 at 10:35pm by Jenny
It depends upon the question. If the PERIMETER of a square is 12 inches, then each SIDE must be 12/4 = 3 inches. If each SIDE of the square is 12 inches, then the perimeter is 48 inches.
Friday, August 28, 2009 at 11:58pm by DrBob222
A. A regular hexagon with a perimeter of 24 units is inscribed in a circle. Find the radius of the circle. B . Find a relationship between the areas of triangle ADC and parallelogram ABCD this is our assignment for tomorrow . . its geeting late please help me finish
Tuesday, October 22, 2013 at 9:57am by Barbie Lee
How do you find the perimeter of a second polygon given just the scale factor of both polygons and the perimeter of the larger polygon? The problem is Two similar polygons have a scale factor of 3:5. The perimeter of the large polygon is 120 feet. Find the perimeter of the ...
Saturday, February 4, 2012 at 7:28pm by Melanie
the area of a triangle=(1/2)(base)(height) 12cm^2=(1/2)(base)(base+2) 12=(1/2)(b)(b+2) solve for b. Then solve for height by plugging by into the first equation.
Tuesday, December 14, 2010 at 4:22pm by TutorCat
emily is constructing a triangle one side is 3 inches long and another is 5 inches long which of the following is the smallest measure emily could use for the third side of the triangle
Thursday, May 31, 2012 at 1:04am by chrissi
there are lots of triangles with two sides 3 and 5. Now, if the 3rd side is 4, then you have a right triangle. Or, if the 3rd side is √34 you have a right triangle.
Friday, June 29, 2012 at 2:12am by Steve
Find the dimensions of the rectangle with area 256 square inches that has minimum perimeter, and then find the minimum perimeter. Dimensions: Minimum Perimeter:
Friday, April 20, 2012 at 10:17pm by casidhe
Mr.Lewis drew a triangle measurement, x, .5x, and 1.5x. What is the best classification for this triangle? a. acute, scalene b. obtuse, scalene c. right, equilateral d. equiangular, equilateral e. obtuse. isosceles (i don't understand how to solve this problem)
Thursday, December 27, 2012 at 2:24pm by nicole
The sides of a triangular lot are represented by x, 2x, and 3x + 2. Find each side if the perimeter is 362 feet. What are the 3 lengths?
Sunday, January 16, 2011 at 12:46am by Ivan
The perimeter of the quadrilateral is 80feet. Find the length of the other sides. One side is x+9 another is x+13, 4x-5, x^2-8x.
Tuesday, August 6, 2013 at 9:48pm by lia
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 dont know what to do next.
Saturday, April 10, 2010 at 12:05pm by Adeola
Which set of side lengths shows similar triangles? (1 points) A) Triangle ABC : 40, 20, 50; Triangle XYZ: 10, 4, 8 B) Triangle ABC : 30, 20, 60; Triangle XYZ: 40, 60, 90 C) Triangle ABC : 110, 80, 60; Triangle XYZ: 6, 8, 5.5 D) Triangle ABC : 32, 20, 32; Triangle XYZ: 30, 16, 16
Friday, April 29, 2011 at 1:42pm by Dezzy
MATH : pitfall
Unfortunately the triangle does not exist. Any properly formed triangle has to have any two of its sides greater than or equal to the third. In this example, the sides 2 and 6 will never meet to form a triangle, since the base is 10 inches. Mathematically, this can be ...
Friday, July 15, 2011 at 7:03pm by MathMate
For this problem is it only asking for the exprssion(formula). Or do they want me to solve it. (1) A triangle has sides 3x+7,4x-9,and 5x+6. Find the expression that represents its perimeter. My answer:P=a+b+c I think the question is asking for the expression, but I would take ...
Tuesday, December 12, 2006 at 2:00am by Jasmine20
how do you find the perimeter of a triangle like this but with an 8 on one half of the middle (cut in half) and the bottom being 5m . . . . . .......
Monday, April 5, 2010 at 8:51pm by Anonymous
perimeter of right triangle equals 1400 and hypotenuse equals 600 how do you find out what legs measure
Monday, May 24, 2010 at 9:58pm by babs
Triangles ABC and DEF are similar. Find the perimeter of triangle DEF. Round your answer to the nearest tenth.
Friday, March 1, 2013 at 12:59pm by sally
Right triangle ABC has one leg of length 12 in and a hypotenuse of length 13 inch. A) Determine the length of the other leg B) Determine the perimeter of the triangle. C)Determine the area of the triangle. Must show work as well as answers for each of the above.
Thursday, February 20, 2014 at 11:17pm by Boo
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
What is the value of x so that the perimeter of the triagle is at least 57? 14 on left side x + 4 on right side 2x-3 on the bottom
Thursday, February 10, 2011 at 9:31pm by Missy
MARY DREW A REGULAR PENTAGON EACH SIDE HAVING A LENGTH OF 4 INCHES. IF SHE DOUBLES EACH SIDE, WHAT WILL HAPPEN TO THE PERIMETER?
Tuesday, May 8, 2012 at 7:26pm by JANIAH
a = the length of the shortest side b = the length of the middle side c = the length of the longest side P = the perimeter The perimeter of a triangle is 42 inches. P = a + b + c a + b + c = 42 Subtract c to both sides a + b + c - c = 42 - c a + b = 42 - c The sum of the ...
Monday, November 4, 2013 at 1:20am by Bosnian
Find the area of the shaded part in the figure. Use 3.14 for ànand round your answer to one decimal place. the triangle as a cicle in the middle the right side is 15ft and the bottom side is 15ft what is the answer
Friday, October 10, 2008 at 1:28pm by derrick
the height of a triangle is 4 centimeters longer than its base. If the area of the triangle is 22.5 swuare centimeters, then what is the height of the triangle?
Wednesday, May 9, 2012 at 1:04am by Anonymous
if the base of the equilateral triangle with sides 10 centimeters long , Which is CLOSEST to the area of the base?
Tuesday, December 14, 2010 at 5:09pm by Anonymous
what is the base and heigt of a triangle that has an area of 27 feet squared and the height is 3x base?
Wednesday, September 14, 2011 at 8:01pm by christina
how do i figure out the length of one side of a triangle if I know one side is 40 meters, and the angle on one side is 90 degrees and the other side is 42 degrees?
Thursday, January 26, 2012 at 1:59pm by brandon
you know a 45-45-90 triangle has legs 1,1 and hypotenuse √2 and so, ...
Tuesday, December 4, 2012 at 4:58pm by Steve
Triangle DEF is an isosceles triangle with DE = FE. If DE = 5 and ÚD = 75 degrees: what is the length of FE, the measure of angle F, and the measure of angle E? E D ∆ F
Thursday, June 16, 2011 at 1:54am by Phillip
In a triangle, find the length of the side not given, B=1,c=~17
Saturday, October 23, 2010 at 10:59am by John H.
how do you find the height of a triangle that is 20cm. on each side
Monday, May 9, 2011 at 8:09pm by briana
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
if an obtuse triangle has an area of 28 sq.in. how do you find the base and height?
Sunday, May 19, 2013 at 5:22pm by harmin
in order to determine the width of a river, a base line of 100 ft is marked off on one side. On the other side of the river is a large rock. When sighted from each end of the base line it is found that the lines of sight make angles of 60 degrees and 75 degrees, respecively, ...
Sunday, September 23, 2007 at 7:48pm by Casandra
hah, I will guess 3,4,5 triangle at each end base = top + 6 4(base + top)/2 = 48 base + top = 24 2 top + 6 = 24 top = 9 base = 15
Saturday, March 19, 2011 at 5:50pm by Damon
Recall that are of triangle is just A = (1/2)bh where b = base h = height It was said that the base is half of the height, or b = (1/2)h. Substituting to the formula, A = (1/2)(1/2)h*h 121 = (1/4)*h^2 484 = h^2 h = 22 m Solving for the base, b = (1/2)*22 = 11 m Hope this helps...
Thursday, October 31, 2013 at 11:53am by Jai
What is the area of a...... parallelogram. with a triangle. with a base of 19ft. and the triangle being a 30-60-90. with a hypotenose of 16ft
Wednesday, March 24, 2010 at 9:31pm by Monique N.
Base of a triangle is 12 inches longer than twice the length of altitude x. Write polynomial area of triangle.
Friday, November 11, 2011 at 7:21pm by Alice
you start with an equilateral triangle and then trisect each of the sides with a new equilateral triangle on the middle third of each trisection, repeat the process indefinitely how would you prove that the perimeter is infinite?
Sunday, February 8, 2009 at 11:42pm by alex