Sunday

November 23, 2014

November 23, 2014

Number of results: 73,890

**geometry**

In the accompanying diagram of triangle ABC side DE is parallel to AC. If BD is 8 and BA is 18, that is all on side d is the midpoint of BA and BC is 27 with the midpoint E what is the length of BE??
*June 8, 2010 by Michelle *

**grade 6 math**

The shorter side of a rectangle is 20 m. Decreasing the longer side by 30 cm reduces the perimeter by one half. How long are the longer sides of the original rectangle? Explain the reasoning.
*March 2, 2009 by vana*

**math**

consider a square and a regular pentagon. one side of the square is 6 feet longer than a side of the pentagon, and the figures have the same perimeter. what are the lengths of the sides of each figure?
*September 24, 2010 by ???*

**math**

2m shorter than twice side b and side c 3m longer than side b find the length of each side
*April 25, 2011 by jem,s*

**Math**

in a rectangle the measures of the base and the altitude are in a ratio of 1:4. I f the rectangle is equal in area to a square with a perimeter of 60 feet, find the dimensions of the rectangle HELP PLEASE TYSM!!
*October 7, 2014 by Melinda*

**geometry**

A triangle is inscribed in a circle. One side of the triagle has lenghth 12 cm, and the angle opposite that side measures 30 degrees. What is the diameter of the circle?
*March 8, 2012 by Jenna*

**pre calculus**

For a given right triangle, side a = 400 feet and side b = 900 feet.What is the measure of angle A to the nearest degree?
*November 30, 2012 by Kelsey*

**pre calculus**

For a given right triangle, side a = 400 feet and side b = 900 feet. What is the measure of angle B to the nearest degree?
*November 30, 2012 by Kelsey*

**pre calculus**

For a given right triangle, side a = 490 feet and side b = 960 feet. What is the measure of angle B to the nearest degree?
*November 30, 2012 by Kelsey*

**algebra**

the perimeter P of a square is four times the length of ones side s, or P=4s. Is (1455) a solution of this equation? If not, find a solution that uses one of the given values
*November 1, 2011 by jacky *

**math**

The aera of rectangle MATH is 30 sq cm and each side-length is a counting number of cm. H is the midpoint of TO. The area of square ECHO is between 5 sq cm and 24 sq cm. Find the perimeter of the entire fiure in cm.
*December 10, 2012 by nguyen*

**math115**

divide 30/49 divide 16/21= 45/56 a triangle has a base 15ft and an altitude of 8ft find the area =60ft^2
*October 20, 2009 by david*

**math**

the length of the base of a triangle is 4 times its altitude. if the area of a triangles is 162cm2 find the altitude
*February 11, 2011 by annette*

** 6 grade math**

how do you find the height of a triangle with an area of 245 square inches and a base of 14 inches.
*March 19, 2012 by justin*

**Algebra**

The base of a triangle in terms of x is: 2^2+4x+2 and the height is x^2+3x-4 Area=1/2(2x^2+4x+2) (x^2+3x-4)= 6x^2+2 (x^2+3x-4) Trying to find the area and not sure which direction to go
*November 2, 2014 by Babydoll2007*

**College Algrebra Math 133 unti 1 IP 1**

Suppose the width of a rectangle is 5 inches shorter than the length and that the perimeter of the rectangle is 80 inches. The formula for the perimeter of a rectangle is P=2L + 2W. Set up an equation for the perimeter involving only the L the length of the rectancle. And ...
*May 11, 2013 by Dana*

**Pre Calculus**

1. A rectangular box has a square base, four sides, but no top. It has a volume of 20 cubic feet. Let A be the surface area of the box, and L the length of one side of the base. (a) The volume is measured in cubic feet. What units are convenient to use for the area A and the ...
*September 11, 2012 by Mario Trujillo*

**math**

A softball diamond is a square with sides of 60 feet long. How far is home plate to second base? Round to the nearest tenth if necessary. 60 Home plate, first base, and second base form a right-angled triangle, with home plate to second as the hypotenuse. Call that distance h ...
*April 9, 2007 by ana*

**Precalc**

Okay for this question I know I am supposed to use the law of sines. But how can i tell what side is what? In right triangle ABC, a = 120 and c = 140, and ÐC is the right angle. Solve the triangle. Round to the nearest tenth, if necessary.
*August 5, 2011 by anna*

**Math HELP!**

Sylvia made a poster shaped like the triangle shown below. The hypotenuse is 26in. one like is is 24 in. and the bottom leg is blank. What is the length of the the third side of the triangle? A. 10 in. B. 12 in. C. 14 in. D. 16 in. Is the answer D? Thank you
*November 5, 2014 by Callie*

**calculus**

a trapezoid is a quadrilateral with (only) two sides (called bases) that are parallel. an isosceles trapezoid has two equal legs. the area of a trapezoid is A=(1/2)*h*(b1+b2) where b1 and b2 are the two parallel bases and h is the altitude. your problem: a water viaduct has a ...
*November 17, 2011 by robert*

**Math**

Suppose Triangle ABC has right angle C. Find the measures of the other sides to the nearest whole number if...? the measure of angle A is 32 degrees, and the measure of AB is 42. For one side, I got 23, and for the other side, I got 35. Am I right?
*May 16, 2009 by Angie*

**Pre-Algebra**

Find the dimensions of the rectangle.The perimeter is given. Rectangle: P= 210 ft. w;side of rec. 2w=15;bottom of rectangle Help!
*February 8, 2012 by Cassie*

**Algebra 2**

-Explain the difference between log base b (mn) and ( log base b of m)(log base b of n). Are they equivalent? My answer: Let b=2, m=8, n=16 *log base b (mn)=log base b of m + log base b of n log base 2 of 8+ log base 2 of 16=7 * (log base b of m) (log base b of n)=(log base 2 ...
*July 21, 2013 by Anonymous*

**Math**

Can someone help me understand how to convert numbers to base numbers. Such as.... 1. 40 to base two 2. 502 to base eight 3. 42 to base five I have researched the web and cannot find a site that explains it in normal english! Any help would be appreciated.
*May 14, 2009 by Lisa*

**math**

A triangle has an area of 15 cm^2 and a base of 5 cm. If a circle is drawn with a diameter equal to the length of the triangle's height, what is the area of the circle ? a. 6 pi cm^2 b. 9 pi cm^2 c. 12 pi cm^2 d. 18 pi cm^2 e. 36 pi cm^2 please answer and explain
*January 5, 2014 by Thomas*

**mathematics**

The base of a pyramid is a regular hexagon consisting of six equilateral triangles with side of 30cm .Calculate the area of the base of the pyramid?
*July 23, 2013 by Gail*

**Physics**

Three identical charges of 2.0 uC are placed at the vertices of an equilateral triangle, 0.15m on a side. Find the net force acting on each angle.
*February 22, 2012 by Brandon*

**Math**

A triangle and trapezoid share a 15 inch base and a height of 10 inches. For what values of b is the area of the trapezoid less than twice the area of the triangle?
*October 3, 2011 by Jessica*

**math**

15.a. Find x. The figure is not drawn to scale. b. Is the triangle equilateral, isosceles, or scalene? Explain. connexus. com /content/media / 461958-3292011-34843-PM-1262076942/ res00000/ ppg /examview/ S_GEOMB_06_06_06_Unit_6B_Test / sa012-1.jpg 16.The equation (x + 6)2 + (y...
*May 23, 2012 by dreamwishbelieve*

**math problem**

The area A of a triangle with base b and height h is given by A = ½ bh. Find the area when b = 24m (meters) and h = 12m.
*August 22, 2008 by Ann*

**algebra **

The area A of a triangle with base b and height h is given by A=1/2bh. Find the area when b=45m(meters) and h=86m.
*May 27, 2011 by shawn*

**Math**

Find the surface area of rectangular pyramids 1. Length= 1.15ft Width=0.82 ft Height of the slanted face =3.17ft Surface Area=7.1879ft^2 Formula for Rectangular Pyramid Surface Area : B+1/2pl B=area of base p=perimeter of base l=height of slanted face
*February 5, 2014 by Jerald*

**Cosine Law**

Find all missing sides/angles. Round each answer to the nearest unit. Angles/sides ABC (left to right) 1) Angle c= 70 deg side b= 28 yd side c= 26 yd 2) Side a= 18 cm Side b= 24 cm Side c= 28 cm
*May 25, 2014 by Jane*

**algebra**

What is the width of a rectangle with a perimeter of 70 feet if its length is 1 foot? 2 feet? L.feet? perimeter = 2(length + width) If perimeter = 70 then 35= length + width Now substitute 1,2,and L and solve for width. how do you find the L. feet? L is supposed to be any ...
*September 12, 2006 by christine*

**Math**

I need help... I dont need the answer just how I would figure this out. Identify the hypotenuse of the triangle by giving its letter. It is a triangle with the left and bottom lines of the triangle as a right angle. The longest line of the triangle is the top. q, p, and r q ...
*November 7, 2010 by Jewels*

**geometry**

Triangle ABC has side lengths 7, 24, and 25. Do the side lengths form a Pythagorean triple?
*December 14, 2011 by Cindy*

**geometry**

okay i have a few question... 1.Find the equation of a line through the points (-2, -5) and (-7, -5) 2. the three lengths 4, 6, 8, form a.not a triangle b.a right triangle c.an acute triangle d an obtuse triangel
*March 25, 2008 by Hannah*

**help me please**

find the area of each triangle to the nearest tenth. in triangle YZX x=12cm z=16cm measure of angle Y= 130 degrees in trianglE XYZ z= 11in. x= 7in. y= 13in.
*December 8, 2011 by joe*

**Geometry **

A line parallel to one side of a triangle divides one of the other sides into segments of lengths 15 and 9 and divides the third side so that the longest portion is 36. How long is the shorter portion of the third side?
*April 4, 2011 by Kareem *

**physics2**

Charges are placed on an equilateral triangle (all angles are equal and equal to 60 degrees). The length of each side of the triangle is 5.7 meters. A charge of +7.1 micro-Coulombs is placed at the bottom corner of the triangle and another charge of +7.1 micro-Coulombs is ...
*January 29, 2011 by kelly*

**math**

The perimeter of a triangle is 226 inches. The length exceeds
*June 26, 2009 by Anonymous*

**math**

How would a congruence transformation affect the perimeter of a triangle.
*October 15, 2009 by Trisha*

**Mathematics**

What is the perimeter of a triangle of length 6cm, 8cm, 10cm?
*May 5, 2011 by Amala*

**geometry**

if a right triangle has sides of 6 cm, 8cm, and 1 dm what is its perimeter in centimeters?
*January 10, 2012 by kris*

**geometry**

Two sides of a triangle measure 4 inches and 9 inches. Determine which cannot be the perimeter of the triangle. A.19 inches, B.21 inches, C.28 inches, D.26 inches
*March 28, 2011 by mel*

**Geometry**

Need help finding dimensions of a triangular prism. It has a volume of 900 cubic inches. Two of the dimensions are consecutive even numbers. Two of the dimensions are multiples of 5. All the dimensions are less than 16, but greater than 6. All lengths are different. The base ...
*May 20, 2010 by Brett*

**Algebra - area**

I hope I can explain this. I can't draw the shape here, but it is a triangular prism that looks like a wedge of cheese. The height is 20 cm and the three sides are 13, 37, and 40 cm. There is also a line drawn from the corner of the two sides that are 13 and 37 cm, that makes ...
*February 27, 2013 by Sylvia*

**Algebra**

A triangle has the side lengths of 5 inches 12 inches and 15 inches every demention is multiplyed by 1/5 to form a new triangle how is the ratio of the perimeters related to the ratios corresponding sides?
*October 25, 2010 by Joelseph *

**math**

Triangle ABC is an equilateral triangle with side length AB=22. Place a point D on the line segment BC. Extend BC to the point E such that BD=CE. point E is defined as lying on BD and satisfying BD=CE.What is the value of DE?
*June 16, 2013 by Anonymous*

**easy GEOMETRY!!**

1.The perimeter of parallelogram QUAD is 10 more than 5 times AU. If QU =26 cm. find AU 2.If diagonals of a rhombus are 10 cm and 24 cm. find the area and perimeter of the rhombus SOlutions pleaseeeeeee
*October 22, 2013 by keisha*

**math**

on the right triangle, the adjacent side's top is T and the bottom is S. the hypotenuse's side equals 13. the oppisite side is equals 12. and the the point oppisite from the adjacent, is R. using this info, what is the sin. of R,the cos. of R, the sin of T, and the tan of T?
*March 21, 2011 by anonymous*

**geometry**

Jim has put a fence along the side AC of the triangular patch of land shown below. A right angle triangle ABC is shown having length of one leg equal to 6 meters. The measure of angle ABC is 90 degrees. A fence is shown on the hypotenuse of the triangle. The length of the ...
*January 6, 2012 by sunny*

**math**

.find the area of a triangle,to the nearest tenth of a square foot if its base is 4.25 feet andits altitude 6.30 feet
*September 6, 2009 by chris*

**math**

5.is 3.671 less than 3.67 yes 6.A triangle has a base of 13 feet and an altitude of 7 feet. Find its area. 45.5 7.find the best buy on cashews a.12oz for $5.39 b.1lb4oz for $7.39 c.10oz for $4.89 d.1lb for $6.39 A. 12oz for $5.39 8.8gal7qt+3gal2qt= 6gal1qt
*October 22, 2008 by deedee*

**Mathematics**

Calculate the side of the square base.if the diagonal of the base of a square prism is 8,49 cm and the height is 12 cm
*October 4, 2011 by Nomvuyiso*

**math - trig**

Suppose ABC is a right triangle with sides of lengths a, b, and c and right angle at C. Find the unknown side length using the Pythagorean Theorem and find the following trigonometric functions of the indicated angle. Given: a = 4 and b = 7 Find: sin A, cot B, sec A, tan B
*September 25, 2013 by Annika*

**maths**

Let ABC be a triangle.Draw median AD on BC.Draw median AE of triangle ABD on BD.Take a point on side AB say F and join CF. Now from D make a line parallel to CF such that the line cuts AB at G. Note- G lies between F and B. AD intersect CF and P. AE intersect GD at H. So BD=DC...
*September 2, 2013 by nami*

**Math**

Triangle ABC is similar to triangle APQ, with angle CBA equal to angle QPA and angle A common to both triangles. The lengths of sides AB, AP and PQ are 90 cm, 60 cm and 30 cm. Calculate the length of side BC.
*June 4, 2010 by Golkhadi nep*

**Calculus**

The measurements of the base and altitude of a triangle are found to be 36 and 50 centimeters, respectively. The possible error in each measurement is 0.25 centimeter. Use differentials to approximate the possible propagated error in computing the area of the triangle.
*December 16, 2013 by Lindsay*

**MATH**

there is a triangle with a base of 2.4 m and both sides are 1.7 m. it is a right triangle. what the heck is the answer? i have an answer sheet and i know the answer is 41 but how do you get that answer?
*March 4, 2010 by j*

**algebra**

Write a function rule for the area of a triangle whose base is 4 ft more than the height. What is the area of the triangle when its height is 6 ft?
*March 27, 2011 by thalia*

**geometry**

I got this problem wrong on a test and i want to know how to fix it. In triangle ABC, angle A is 20 degrees and side AC is 7.89 units, find the other sides and angles
*March 29, 2011 by peter*

**Math-geometry**

. If a spherical Triangle on Earth has an excess of 30 degrees, find the area of this spherical triangle measured in square miles. b. If a spherical triangle on the moon has an excess of 30 degrees, find the area of this spherical triangle in sqare miles. c. Find the ratio of ...
*March 9, 2013 by PLEASE HELP*

**algebra**

find the lenngth of each side of the rectangle so that it has the given perimeter. p= 50 in length is 2L-5 width is L is my formaula i am needing to do this 50=2L-5+2*L i am looking at the formula of P=2L+2W do i have this written right should have been 50 = 2(2L-5) + 2L
*March 29, 2007 by allen*

**pre calculus**

janet worked on a garden shaped like a triangle with a base that is 5 m less than twice the height. If the area of the garden is 90 m^2, how long is the base and the height?
*November 27, 2012 by abraham*

**geometry**

ABCD is an isosceles trapezoid with a height of 4 inches and bases of 10 and 12 inches .What is the perimeter of this trapezoid in inches and feet . HINT:Only the bottom of the entire figure is 16 inches long, not the top
*June 7, 2011 by Veronica*

**math**

what are the dimensions of the lightest rectangular box without an open top whose base is a square and whose height is two less than the length of the side of the base?
*January 18, 2010 by kelli*

**Algebra**

the longer legs of a right triangle is 20 cm more than twice the length of the shorter leg. The length of the hypotenuse is 22 cm more than twice the length of the shorter leg. Find the side lengths of the triangle
*March 30, 2014 by Peter*

**circles**

a. To find X, you will need to add the arc measures together and set this expression equal to the total degrees of a circle and then solve for X. Must show all work. b. Here are the steps to take (show all work) 1. Plug your x-value from a into each of the arc measures to find...
*May 23, 2012 by lilman*

**math i don't get it**

If 6 equilateral triangles are placed side by side so that only two sides of each triangle touch one of the other triangles, what shape is formed? Please explain the answer.
*December 17, 2012 by Anonymous*

**Math**

If six equilateral triangles are placed side by side so that only two sides of each triangle touch one of the other triangles what shape is formed? We are thinking circle?
*April 19, 2014 by Kelley*

**math need help please**

The area H of a triangle with base b and height h is given by H=1/2bh. Find the area when b=21m (meters) and h=38m.
*November 22, 2008 by nonna*

**geometry**

find the volume of the right prism whose base is a right triangle with legs 3 ft and 4 ft and with a height (altitude) of theprism being 8 ft
*October 24, 2011 by clarence*

**area of triangle**

the base of a triangle is 9 cm the area is 18 cm squared what is the height?
*April 9, 2013 by Wyatt*

**geometry**

In isosceles triangle ABC, AB = BC, and D is a point between A and C on AC. Can you conclude MO > ML, MN > MO, angle L > angle BDA, or angle N > angle BDC
*January 5, 2011 by Nick*

**geometry**

i have a triangle and i have to find the primeter....here are the measurements...3/8...3/8..3/8 on each side. 3/8+3/8+3/8=9/8?
*September 11, 2009 by A*

**algebra**

Find the length of a side of an equilateral triangle with altitude of length 6.
*March 2, 2010 by chica*

**Geometry**

You are presented with a right triangle. The dimension of side a is 2 inches and the dimension of side b is 4 inches. Calculate the dimension of side c. I believe it would be 4.5 inches
*October 4, 2008 by Jen*

**geometry**

Given the triangle ABC and m<A = 22º; a = 6. Find the measurement of side b if angle C is the right angle.
*June 30, 2011 by Anonymous*

**Algebra Homework, HELP!**

1) A rectangle has an area of 297 square inches and a width which is three inches less than four times the length. Find the length and the width of the rectangle. 2) Let x represent the length of the shorter leg in a right triangle. If the longer leg is 1 more than the ...
*October 14, 2013 by Preston*

**physics**

a vertical dock gate is 5m wide and is hinged at 1m from the base of the dock. the dock has sea water with density of 1025 kg /m^3 to a depth of 7.5 on one side and fresh water to depth of 3m on the other side a) find the resultant horizontal force b) Determine the overtunning...
*January 13, 2014 by moody*

**math**

solve: perimenter of triangle perimeter is 12 meters determine values x, x+1, and x+2 x(x+1)+(x+2)=12
*November 5, 2008 by Maddy*

**GED Math**

In the figure below, if the perimeter of triangle ABC is 48, what is the value of x?
*January 14, 2012 by Alma*

**Advanced Algebra 1**

A polygon has a perimeter of 24mm. Find the new perimeter after a scale factor of 1/4 is applied?
*October 14, 2010 by Jordan*

**math**

Base is 16 cm squared, Width is 2.5 cm. what is the perimeter and height
*January 13, 2013 by donna*

**math**

Find the representation of the number 256 in thefollowing bases:a. Base six b. Base twelvec. Base two
*October 15, 2010 by Anonymous*

**math**

Two sides of an isosceles triangle are 13 inches and 16 inches. What are two possible perimeters ? IS one 42 ?
*December 3, 2013 by sam*

**math**

An isosceles triangle of sides 13cm, 13cm, 10cm is inscribed in a circle. What is the radius of the circle?
*March 17, 2014 by abigail*

**Algebra II**

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?
*November 21, 2011 by Ashley*

**Math**

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?
*November 22, 2011 by Zoey*

**Algebra II**

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?
*November 22, 2011 by Jake*

**Algebra II**

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?
*November 22, 2011 by Jake*

**Math**

The area of a triangle varies jointly as its base and altitude. By what percent will the area change if the base is increased by 15% and the altitude decreased by 25%?
*November 22, 2011 by Jake*

**word problem**

what are the dimensions of the lightest rectangular box without an open top whose base is a square and whose height is two less than the length of the side of the base?
*January 18, 2010 by kelli*

**maths**

anyone can help me with this question plz .how u find the angle between side of hexagon which it has 6 different side and the length of each side is ,side1: 128mm, side 2:10mm, side3:112mm,side4: 82mm, side5:48mm,side6:30mm.
*October 2, 2013 by john help me with this question plz*

**calculus II**

Suppose R is the region in the plane enclosed by y = x2 and y = 4. a) Compute the perimeter P and area A of R, and then compute the ratio Q = A/P2. Note By squaring the perimeter the ratio becomes independent of the units chosen to measure the region. b) Compute this ratio Q...
*November 23, 2012 by Anonymous*

**calculus**

There are an infinite number of triangles that must be isosceles and have two legs that measure 10 cm, each of them has an area. what is the biggest area such a triangle could have?
*September 2, 2009 by sarah*

**Geometry**

a. If a spherical Triangle on Earth has an excess of 30 degrees, find the area of this spherical triangle measured in square miles. b. If a spherical triangle on the moon has an excess of 30 degrees, find the area of this spherical triangle in sqare miles. c. Find the ratio of...
*March 5, 2013 by PLEASE HELP*

**Math**

Triangle ABC has ∠A=40∘, ∠B=60∘, ∠C=80∘. Points M,N trisect the side BC and points P,Q trisect the side AC. The lines AM,AN,BP,BQ intersect at the points S,T,U,V as shown in the figure below, dividing the triangle into 9 regions. Determine ...
*June 14, 2013 by Bob*

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