Saturday

October 22, 2016
Number of results: 91,148

**help?**

find the altitude of an equilateral triangle if a side is 6 mm long.

*March 18, 2013 by 21 Guns*

**Geometry**

Find area of a triangle with side lengths 15 15 and 8

*April 10, 2016 by Anonymous*

**math**

Geometry. How do you find the area of a triangle with the base of 1 1/8 and a height of 2/3 inches?

*February 22, 2011 by Shiela*

**algebra**

find the area of a triangle with the base of 3 2/3 yards and height of 3/7 yrads

*September 23, 2012 by Tina*

**plane geometry**

if an obtuse triangle has an area of 28 sq.in. how do you find the base and height?

*May 19, 2013 by harmin*

**Math**

I need help please. find the base of a triangle where area=36 and height =9

*August 16, 2016 by Hope*

**geometry**

not sure if youll understand but ill try and explain the picture is a trapezoid i believe b1 is 7cm, and do not have the height but the numbers on the long side is 8cm and the side of b2 is 4cm this part of the pic looks like a right triangle am not able to find the height

*March 31, 2012 by kevin*

**math**

The length of the second side of a triangle is 24 cm shorter than twice the length of the first side. Using f for the first side and s for the second side, translate the sentence into an equation.

*August 24, 2014 by patience*

**geometry**

51. The ﬁgure below illustrates an isosceles right triangle with legs of length 1, along with onefourth of a circle centered at the right-angle vertex of the triangle. Using the result that the shortest path between two points is a line segment, explain why this ﬁ...

*January 25, 2012 by deana*

**math**

If one side of a triangle is of length x and another side is of length x+6,which of the following could not be the lenght of the third side? a.5 b.7 c.9 d.11 e.13

*January 13, 2013 by john*

**math**

the base of a triangle is the same as its height. what are the least whole number measurements for the triangle so that the area would be greater than 144 ft square?

*February 10, 2011 by martin*

**math**

the base of a triangle is the same as its height. what are the least whole number measurements for the triangle so that the area would be greater than 144 ft square?

*February 10, 2011 by martin*

**Math**

Multiple Choice Use the figure to answer questions 1–3. lines 1 Name a pair of complementary angles. (1 point) angle sign1 and angle sign4 angle sign1 and angle sign6 angle sign3 and angle sign4 angle sign4 and angle sign5 2 If mangle sign1=37°, what is mangle sign4? (1 point...

*January 19, 2016 by Math help!*

**calculus**

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.

*October 27, 2010 by DJ*

**Geometry**

Find the perimeter and area of each figure. give your answers in the simplest radical form.a 30-60-90- degree triangle with hypotenuse length 28 centimeters.

*January 10, 2011 by Esperanza*

**math**

in triangle ABC ,D and E are the midpoint of line AB andAC resp.angle A=angleB=angleC=angleD=60° DE=5cm find the perimeter of triangleABC.

*March 18, 2013 by anupama*

**Ms. Sue Please help!!!**

Ahhh... thank you "A square and an equilateral triangle have the same perimeter. Let A be the area of the circle circumscribed about the square and B be the area of the circle circumscribed about the triangle. Find A/B." It's a tough one.

*June 10, 2014 by Sheenybeany*

**geometry**

In triangle ABC, if line BC is one inch longer than line AB, line AC is 10 inches shorter than the sum of line BC and line AB , and the perimeter of triangle ABC is 72 inches, find the length of line BC?

*November 3, 2010 by meghan*

**geometry**

I have right triangles I need to solve. Can you see if I am doing them correctly or screwed up..1) Rt < is in left corner C: Opposite is 60 deg< A, last angle is at top- 30 deg <. line segment of AB is 10. Hypo is f. I got 10 0r 12.5 for answer. 2) Triangle is ABC ...

*April 20, 2015 by robin*

**geometry**

Two sides of a triangle measure 2x – 4 and 7x – 2 units, respectively. Which of these is a possible length for the third side of the triangle?

*March 16, 2010 by MARY*

**5th grade**

the lengths of two sides of a triangle are 15in.each.the third side measures 10 in.what type of triangle is this

*December 2, 2010 by Anonymous*

**physic **

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?

*August 17, 2012 by sara*

**Math**

If I know all 3 angles of a right triangle and the hypotenuse how do I figure out the short side length of the triangle?

*April 3, 2015 by Steve*

**Math**

What the base b1 of an Isosceles trapezoid if b2=57ft,h=17ft6inches and both legs are 23ft? or the formula for the solution?thank you.

*November 18, 2011 by Jason*

**Math Help**

1. Parallelogram PARL~ parallelogram WXYZ. Find the value of c. Parallelogram 1 has P n the bottom left corner, A on the left top, R on the right top, L on the right bottom. Parallelogram 2 has W on the bottom left corner, X on the left top, Y on the right top, Z on the bottom...

*November 20, 2014 by callie*

**Geometry**

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...

*November 30, 2008 by Frost Boost*

**6th Grade Geometry**

Hello, I'm having trouble doing this math geometry someone help me please? Thanks: Calculate the area of the trapezoid which is not drawn to scale. It is not a regular trapezoid! It looks like a rectangle and when you get to the top cut the rectangle and make the part you cut ...

*March 11, 2015 by MusicLover14*

**Math**

A triangle has a base of 10 inches and a height of 20 inches. If the area of a triangle is one - half the product of its base and height, what is 20 % of its area?

*September 15, 2011 by James*

**Calculus**

The base is an equilateral triangle each side of which has length 10. The cross sections perpendicular to a given altitude of the triangles are squares. How would you go about determining the volume of the solid described? The textbook answer is 500/3(sqrt3) However I got 250 ...

*July 22, 2011 by Chris74*

**MTH 157**

I need help on these two questions. 1. Describe what happens to the three points of concurrency that determine the Euller lines when the triangle is (a) isosceles, (b) equilateral 2. Which of the following triples of numbers can be the sides of a right triangle? Explain why. (...

*August 21, 2010 by Rayna *

**7th Grade Math**

Use familiar figures to to find the area of the figure shown. Show all work. Since I can't provide a picture, here is the description. It looks like a rocket ship. There is a triangle with a width of 4 inches. A rectangle with a base of 3 inches and a width of 10 inches. ...

*June 6, 2016 by Music Lover 14*

**Math**

Rectangle side is represented by (2,3) and (-6,4). Find the perimeter of rectangle. Do I have to find the magnitude of (2,3) and (-6,4) and square root the answer?

*March 22, 2012 by Jake*

**11th grade**

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...

*November 30, 2008 by Please help! I need this urgent, please.*

**calculus (please help)**

find the volume of the solid whose bounded by the circle x^2+y^2=4 and whose cross sections perpendicular to the y-axis are isosceles right triangles with one leg in the base. Please give explanation and steps

*April 22, 2015 by may*

**math**

A building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. Find the length of the side of the lot opposite the 60° angle. b.Find the length of the hypotenuse of the triangular lot. c. Find the sine, cosine, and tangent ...

*March 8, 2013 by allison*

**prealgebra**

A building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. Find the length of the side of the lot opposite the 60° angle. b.Find the length of the hypotenuse of the triangular lot. c. Find the sine, cosine, and tangent ...

*July 31, 2014 by Anonymous*

**trigonometry**

using the law of sines, solve the rest of the triangle: side C=14 side B=4 angle c=145 degrees i got angle b= 9.4 angle a=25.6 side A=10.4 but i didn't know if it was correct

*January 23, 2011 by hw*

**math**

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?

*April 1, 2008 by Aaron McQuady*

**math**

how do you find the missing lenght of a right triangle if you have 20 on the left side and 48 on the bottom and you need to find the missings number

*September 13, 2009 by susan*

**geometry**

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 ...

*April 12, 2010 by sally K*

**Math**

1.Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15*** D.225 2.The length of a hypotenuse of a right triangle is 13cm. The length of one leg is 5cm. Find the length of the other leg. A.14 B.144 C.8 D.12*** 3.Which of the ...

*November 7, 2015 by Cam*

**MATH**

1.Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15*** D.225 2.The length of a hypotenuse of a right triangle is 13cm. The length of one leg is 5cm. Find the length of the other leg. A.14 B.144 C.8 D.12*** 3.Which of the ...

*November 7, 2015 by Cami*

**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

*September 8, 2010 by Anonymous*

**Pre-Algebra**

Q: A building lot in a city is shaped as a 30° -60° -90° triangle. The side opposite the 30° angle measures 41 feet. a. Find the length of the side of the lot opposite the 60° angle. b. Find the length of the hypotenuse of the triangular lot. C.Find the sine, cosine, and ...

*June 22, 2014 by DArko*

**Math**

Find the perimeter and the area of the rectangle. I cant upload pics. Its a rectangle with 12cm at the bottom and theres a diaganal line going through and its 15cm Perimeter: 54 cm, Area: 180 cm^2 Perimeter: 54 cm, Area: 108 cm^2 Perimeter: 42 cm, Area: 180 cm^2 Perimeter: 42 ...

*May 5, 2016 by Amy Pond*

**Math**

Tell whether the triangle with the given side is a right triangle;14mm, 19mm, 23mm Explain please.

*November 15, 2010 by Sasha*

**geometry!!!**

Write the ratios for sin A and cos A. The triangle is not drawn to scale. *right triangle. 14 on the side. 50 on the slant. and 48 on the bottom.

*February 20, 2013 by Anonymous*

**physics**

In a certain right triangle, the two sides that are perpendicular to each other are 3.80 m and 8.10 m long. What is the length of the third side of the triangle?

*January 24, 2014 by leslie*

**Math**

In Triangle ABC, AC = BC and mC = 62°. The longest side of the triangle is: AC BC AB AM

*January 16, 2012 by Trisha*

**math**

In Triangle ABC, AC = BC and mC = 62°. The longest side of the triangle is: AC BC AB AM

*January 16, 2012 by Trisha*

**geometry**

A triangle has side lengths of 6, 8, and 9. What type of triangle is it?

*March 18, 2013 by mayra*

**geomotry **

In Triangle ABC, AC = BC and mC = 62°. The longest side of the triangle is:

*May 22, 2015 by ashley*

**Calculus**

Find the inverse of each relation: y = (0.5)^(x+2) and y = 3log base 2 (x-3) + 2 For the first one I got y=log base 0.5 (x+2)...but the answer in the back of the textbook says that it is not x+2, but x-2. Can someone tell me why it would end up being x-2 and help me with the ...

*May 6, 2007 by Raj*

**Elementary Math**

What if we made a pattern by joining pentagons? If the length of each side of the pentagon is 1 unit, then what would be the perimeter of n pentagons joined together? Note: The perimeter is the distance around the outside of the figure.

*January 27, 2011 by Lily*

**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 ABC...

*June 8, 2007 by kat*

**Geometry.**

prove that the distance between any two points inside triangle abc is not greater than half the perimeter of triangle abc my teacher said to try doing this proof by contradiction. can someone please help??

*December 19, 2013 by Sammy*

**Geometry**

In an isosceles triangle, line segment AC is congruent to line segment AB. Find the value of y in terms of x if one of the remote interior angle is y and the exterior angle is 3x+20. I think the answer is y=6x-140 but I don't know how they got it.

*December 8, 2015 by Ashley*

**Math(Geometry)**

In the diagram below(no diagram but details will be provided), right triangle ABC and line BD is an altitude to side line AC. * Prove that (AB)^2=(AC)(AD) -When you label the triangle B should be were the right angle is C should be at the top of the triangle and it should be ...

*November 24, 2010 by Phyllis *

**math**

The rectangle given has a perimeter of 14 units. Find the value(s) of x by factoring a quadriatic equation. one side= 12/(x+1) other side= 6/(4-x) Remember that the perimeter of a rectangle is: P = 2L + 2W Note: P = perimeter, L = length, and W = width. Therefore: 14 = 2[12/(x...

*January 17, 2007 by Shay*

**Math**

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.

*March 5, 2012 by Elaina*

**Algebra**

The hypotenuse of a right triangle is 13 inches long. The shorter leg is 7 inches shorter than the longer leg. Find the side lengths of the triangle.

*March 23, 2016 by Jewls*

**calculus**

A rectangular box is to have a square base and a volume of 50 ft3. The material for the base costs 44¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 26¢/ft2. Letting x denote the length of one side of the base, find a function in the ...

*January 23, 2011 by Anonymous*

**calculus**

A rectangular box is to have a square base and a volume of 50 ft3. The material for the base costs 44¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 26¢/ft2. Letting x denote the length of one side of the base, find a function in the ...

*January 23, 2011 by Anonymous*

**calculus**

A rectangular box is to have a square base and a volume of 50 ft3. The material for the base costs 44¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 26¢/ft2. Letting x denote the length of one side of the base, find a function in the ...

*January 23, 2011 by Anonymous*

**calculus**

A rectangular box is to have a square base and a volume of 50 ft3. The material for the base costs 44¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 26¢/ft2. Letting x denote the length of one side of the base, find a function in the ...

*January 23, 2011 by Anonymous*

**math**

A rectangular box is to have a square base and a volume of 50 ft3. The material for the base costs 42¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 24¢/ft2. Letting x denote the length of one side of the base, find a function in the ...

*September 23, 2012 by Anonymous*

**Calculus**

A rectangular box is to have a square base and a volume of 20 ft3. The material for the base costs 42¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 26¢/ft2. Letting x denote the length of one side of the base, find a function in the ...

*June 11, 2013 by Metzli*

**math**

A rectangular box is to have a square base and a volume of 30 ft3. The material for the base costs 33¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 24¢/ft2. Letting x denote the length of one side of the base, find a function in the ...

*September 7, 2014 by kyle*

**physics**

the figure shows a uniform beam of weight 420 N and length 2.0 m suspended horizontally. On the left it is hinged to a wall, on the right it is supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1100 N. What ...

*March 17, 2009 by sweety*

**physics**

the figure shows a uniform beam of weight 420 N and length 2.0 m suspended horizontally. On the left it is hinged to a wall, on the right it is supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1100 N. What ...

*March 19, 2009 by sweety*

**math**

a triangle,side ac is 3/5 of side ab,and is 23.1 m. side ab is 7/9 of side bc.angle b is 1.5 times larger than angle c,and angle a is twice the size of angle c.how many degrees is angle A

*August 11, 2012 by don *

**math**

The basketball coach wants to know the perimeter of the court. The area of the court is 4700 feet2. What is the perimeter? The long side of the court is 94 feet.

*March 18, 2010 by Christine*

**pythagoream theroem**

how do you find the height of a triangle that is 20cm. on each side

*May 9, 2011 by briana*

**albgrea**

a triangle has 525cm and a base of 50 cm use the formula a=1 over 2 bh to find its height

*October 20, 2009 by cody*

**math**

find the missing dimension of each triangle height=17 area=51 what is the base please help!!

*March 28, 2011 by osdrian*

**trig**

Q1: In a right-angle triangle the base is 50 m long and its height is 40 m .find its area

*October 21, 2011 by Anonymous*

**math**

find the base and height of triangle in ratio 8to 5 and area is 320

*September 15, 2015 by joan*

**Trigonometry**

In a right triangle normal is 40cm,hypotenuse is 44.Find the value of base?

*November 30, 2015 by Anonymous*

**Math**

I need some help with this please. Find the height of a triangle where area=14 and base=4

*August 28, 2016 by Joan*

**Math **

a triangle is 6 cm wider that it is tall. The area is 56 cm². Find the height and the base.

*September 18, 2016 by Holli*

**math**

A triangle has two sides with equal length and a third side 16 meters long. If the perimeter is 42 meters, what is the length of each of the equal sides?

*July 7, 2013 by madison*

**Math**

If I have a triangle and they are asking me to find the perimeter of DEF when EF is 16cm and DE is 12cm would I add those two numbers then subtract 180 from that answer?

*May 9, 2013 by Anonymous*

**Geometry**

One leg of a right triangle has a length of 15 m. The other sides have lengths that are consecutive integers. Find the number of meters in the perimeter.

*August 24, 2015 by Mr. Alexander*

**geometric**

The perimeter of a rectangular carpet is 70feet. The with is three -fourths the length .Find the width. 38. The length of a rectagular room is six times as the width . The perimeter 84 yards. find the width. 39. The width of a rectangle is 12 less than the length. The ...

*March 13, 2007 by baby girl*

**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?

*September 21, 2011 by Ck*

**Applied Calculus**

A rectangular box is to have a square base and a volume of 50 ft3. The material for the base costs 32¢/ft2, the material for the sides costs 10¢/ft2, and the material for the top costs 26¢/ft2. Letting x denote the length of one side of the base, find a function in the ...

*March 13, 2013 by Jacob*

**Precalc**

1. 1/3log base 8 of (x+1)=2log base 8 of 3-(2/3)log base 8 of (x+1) 2. 2^x+8 times 2^=x all over 2 = 3 3. if log base a of 3= x and log base a of 2 = y, find each of thefollowing in terms of x and y log base a (18a^3) thanks!!

*November 28, 2012 by Rebekah*

**math . . .**

To measure the height of an inaccessible cliff on the opposite side of a river, a surveyor makes the measurements shown in the figure ( one angle is 33.1 & the other i 69.4) . If distance d = 202 meters and Ð b = 50.0°, find the height of the cliff. the diagram is a triangle ...

*March 26, 2010 by Thank You For The Help*

**Math**

The length of the side QR of a triangle PQR is 14.5cm <PQR=71 <QRP=57,find the length of the side s PR and PQ

*January 15, 2015 by Joyce*

**Physics URGENT**

5uC charges are at the base vertices of an equilateral triangle 0.4m on a side. What is the electric field at the third vertice? im not completely sure how to start that.. don't i need the force to calculate the x&y components? NO. Figure E directly from a charge. ...

*February 2, 2007 by MatT*

**Physics E&M**

Three electrons form an equilateral triangle 1.00 nm on each side. A proton is at the center of the triangle.What is the potential energy of this group of charges?

*February 18, 2008 by Spencer*

**MATH**

two sides of a triangle measure 8 and 15. how many integer values can be assigned to the third side so that all the angles in the triangle are acute.

*January 28, 2011 by Diana*

**geometry**

Two sides of a triangle measure 8 and 15. How many integer values can be assigned to the third side so that all the angles in the triangle are acute?

*April 18, 2011 by samuel*

**physics **

In a certain right triangle, the two sides that are perpendicular to each other have lengths h = 4.40 m and b = 8.70 m. What is the length of the third side of the triangle?

*January 21, 2016 by john*

**trig**

In a certain right triangle, the two sides that are perpendicular to each other have lengths h = 4.40 m and b = 8.70 m. What is the length of the third side of the triangle?

*January 23, 2016 by jojo*

**math**

In equilateral triangle ABC, AB=3x and BC= 2x=12. Find the numerical value of the perimeter of ABC.

*September 29, 2010 by Troy*

**math**

according to the triangle inequality, the length of the longest side of a triangle bust be less than the sum of the lengths of the other two sides. the two shortest sides of a triangle measure 3/10 and x + 1/5 and the longest measures 3/2x. write an inequality that uses the ...

*January 15, 2016 by j*

**physics**

Three equal positive point charges q are at the corners of an equilateral triangle with sides of length a. What is the magnitude and direction of the electric field at one corner of the triangle due to two charges placed on another two corners of the triangle ?. These two ...

*January 12, 2016 by THOMAS123*

**math**

How do you find the area of each triangle and know which one has the greatest area , if you have a perimeter of 12 units

*March 8, 2015 by kimmy23*

**PHYSICS**

explorers in the jungle find an ancient monument in the shape of a large isosceles triangle. the monument is made from tens of thousands of small stone blocks of density 3 800 kg/m^3. the monument is 15.7 m high and 64.8 m wide as its base and is everywhere 3.6m thick from ...

*March 5, 2013 by helpppp meeeeeeee PHYSICS.........................*