Tuesday

February 9, 2016
Number of results: 84,572

**Algebra**

In a right triangle find the length of the side not given. b=1, c=sqrt10, a need help
*July 3, 2008 by Sam*

**Pre Calc**

In triangle ABC, b=14, c=15, and cos a= 3/5. Find a)side a b) Sin B Help please?
*April 13, 2009 by MW*

**Geometry **

In triangle ABC, side a=7, b=6, and c=8. Find the measure of angle B to the nearest degree.
*May 8, 2010 by Sue*

**math**

in right triangle find length of side not given b=1,c=square root of 26
*September 14, 2010 by ruthann*

**Geometry**

How do you find the distance from the center of an equilateral triangle, with the side length of L, to a point?
*January 11, 2011 by Ngoc*

**maths**

find area of the triangle with the length of the side 36cm,48cm, and 60cm.
*December 17, 2011 by sunil tadvi*

**Algebra**

triangle-find the length of the missing side? a= 16, b = 63 please walk me through this.
*March 16, 2013 by Brieson*

**math**

how do i find the length x of a right triangle,when one side is x+48(hypotenuse) and the other is 72.?????????
*August 7, 2013 by jaslene*

**Math**

A right-angled triangled has sides (x+10)cm,(x+2)cm and (x+4). find the value of each side of the triangle.
*November 7, 2015 by Odun*

**math b**

the vertices of triangle ABC are A(-2,3), B(0,-3), and C(4,1). prove, by means of coordinate geometry, that the median to side BC is also the altitude to side BC.
*May 25, 2009 by jojo*

**pre calculus**

For a given right triangle, angle B = 46 degrees and side c = 30 feet.What is the length of side b to the nearest foot?
*November 30, 2012 by Kelsey*

**math/calc**

The hypotenuse of a right triangle has one end at the origin and one end on the curve y+x^2e^(-3x), with x > or = 0. One of the other two sides is on the x-asis, the other side is parallel to the y-axis. Find the maximum area of such a triangle. At what x-value does it occur?
*March 30, 2010 by miley*

**math/calc**

The hypotenuse of a right triangle has one end at the origin and one end on the curve y+x^2e^(-3x), with x > or = 0. One of the other two sides is on the x-asis, the other side is parallel to the y-axis. Find the maximum area of such a triangle. At what x-value does it occur?
*March 31, 2010 by miley*

**Evaluation-repost**

Reposting because it has gone down to the second page! Evaluate 1. sin(tan inverse sqrt(x^2-2x)) 2. tan (sec inverse 3y) For 1. draw a right triangle and label the opposite leg sqrt(x^2-2x), the adjacent side 1 and the hypotenuse x-1. Do the calculations to see why this is so...
*October 23, 2006 by Jen*

**Algebra**

2. Use the Pythagorean Theorem to solve the following: A. A baseball diamond is a square of 90 feet on each side. How long is a throw from first base to third base? B. The bottom of a 25 foot plank is placed approximately 7 feet from the side of a barn. Approximately how far ...
*September 12, 2010 by jesse*

**Math**

A rectangle has a perimeter of 20cm. Two of the side are 2cm longer than the other two sides. How long is each side?
*August 28, 2007 by Ally*

**calculus**

the cross section of a 5-ft long trough is an isosceles trapezoid with a 2 foot lower base, a 3-foot upper base, and an altitude of 2 feet. water is running into the trough at a rate of 1 cubic foot per minute. how fast is the water level rising when the water is 1 foot deep?
*October 16, 2011 by rachel*

**geometry**

the perimeter of a square lot is seven times the length of a side, decreased by 12. fine the length of a side.
*January 17, 2011 by renolo alfredo*

**math**

The perimeter of a rectangle with adjacent side lengths of x and y, where x>y, is 8 times as great as the shorter side of the rectangle. What is the ratio of y to x? A. 1:2 B. 1:3 C. 1:4 D. 2:3 E. 3:4
*August 14, 2014 by Juliet*

**7th grade math**

Can you help with geometry? 1. Sally constructs a triangle with one side 6 inches long and another side 8 inches long. What is the 3rd side? (haven't learned Pythagorean theorem) Ans: 6 + x > 8 x > 2 6 + 8 > x 14 > x 8 + x > 6 x > -2 so, x must be > 2, but...
*February 27, 2015 by Alexis*

**Algebra 1--Please, help me!**

The side of a trinagular roof is to have the same height h and base b (with a 2 below) as the side of a trapezodial roof. a. What is the ratio of the area of the triangular roof to the area of the trapezoidal roof? (For a triangle, A = 1/2b(with a 2 below)h. For a trapezoid, A...
*May 23, 2014 by Victoria*

**Geometry (again)**

How can one prove a right isosceles triangle? Or a right trapezoid?
*January 4, 2016 by Meema*

**Math **

Find the surface area for a square prism. The base is 14 in. The perimeter is 8 in. The height is 10 in. A.564 in^2 B. 664in^2 C. 1,120 in^2 D. 1,080 in^2 I need help figuring it out please. Thank you
*February 4, 2015 by Callie*

**geometry**

If given an a cos, sin, or tan of an angle of a right triangle, what steps would you take on your calculator to find the measure of that angle? (For example: cos A = .7986, find angle A, The opposite side is 3. The hypotnuse is 5. And the adjacent side is 4) If someone would ...
*January 17, 2010 by Sara*

**Math**

The sides of a triangle are three consecutive odd integers. The perimeter of the triangle is 39 inches. What is the length of each of the three sides?
*January 3, 2013 by ANONYMOUS*

**Math**

1. If Angle ABC is congruent to Angle DEF by side-side-side triangle congruence, the angle B is congruent to Angle E by? A) Side-angle-side congruence. B) Angle-angle-side congruence. C) Corresponding parts of congruence. D) Corresponding parts of congruent triangles are ...
*January 30, 2016 by Tim*

**math**

name the triangles that are classified by sides. a. right, scalene, isosceles b.scalene, isosceles, equilateral c.acute, right, obtuse d.obtuse, isosceles, acute -Hinata-chan
*February 19, 2014 by HinataHyuga<3*

**math**

Four identical squares, lined up side by side, form a rectangle whose area is 144. What is the perimeter of three of the squares?
*April 11, 2013 by anonymous*

**math**

The perimeter of the polygon below is 9x-1. Find the expression for the missing side length. There are 5 expressions: 3x-4, x-5, x+1, 2x+3, and ?. I got ?=2x-6. I added all the equation and minus it from 9x-1.
*February 9, 2008 by bob*

**math**

Now consider a rectangle of perimeter 20cm.let one side be x find the length of other sides in terms of x"plz help me"thnx
*February 25, 2012 by Zama*

**math**

Now consider a rectangle of perimeter 20cm.let one side be x find the length of other sides in terms of x"plz help me"thnx
*February 25, 2012 by Zama*

**math**

Now consider a rectangle of perimeter 20cm.let one side be x find the length of other sides in terms of x"plz help me"thnx
*February 25, 2012 by Zama*

**MATH PROBLEMS**

draw a quadrangle below. measure the sides to the nearest 1/2 inch write the lenght next to each side .find the perimeter ..
*March 13, 2012 by Anonymous*

**math**

find the perimeter of the actual object using the scale factor shown on hte blueprint. each side is 3 centimeters long. 1cm=5m
*February 14, 2013 by Taylor*

**math**

find the quantities specified ð ~3.14 find the area of a triangle with a base of 12 meters and an altitude of 14 meters
*July 27, 2012 by Anonymous*

**math**

prove that in an isosceles triangle the angles opposite to the equal sides are also equal .
*April 17, 2008 by mota*

**math**

lucy drew an isosceles triangle as shown. if the measure of YZX is 25, what is the measure of XYZ
*February 1, 2016 by meow *

**Math - please help**

The Great Pyramid of Giza is 280 feet tall and about 440 feet wide at the base. The distance from the apex to the center of one side of the base is 356.1 ft. What is the area of one side of the pyramid? 61,600 ft.2 99,708 ft.2 156,684 ft.2 78,342 ft.2 Please explain the answer...
*May 24, 2013 by Christopher *

**Telisis Prep**

The base of a rectangle is 6 inches greater than twice the height. The perimeter is 78 inches. Find the area.
*April 27, 2013 by Bailey*

**Math**

he perimeter of a triangular-shaped garden is 58 feet. The longest side of the garden is 3 times the length of the shortest side of the garden. The other side of the garden is 18 feet more than the shortest side of the garden. What is the length of the shortest side of the ...
*October 19, 2012 by Lora *

**Math Ms. Sue please**

9. Name the triangles that are classified by angles. (1 point) right, scalene, isosceles scalene, isosceles, equilateral acute, right, obtuse obtuse, isosceles, acute I chose the answer "scalene, isosceles, equilateral" but the correct answer is "acute, right, obtuse". Why is ...
*March 26, 2013 by Delilah*

**math**

In triangle ABC, side AB = 17 inches and side BC = 25 inches. What could be the length of side AC?
*March 6, 2011 by Julia Maloney*

**math**

in a triangle /one side is x/one side is x+1/another side is 20/if it is true and what is value of x
*October 21, 2012 by lewisville*

**College Intermediate Algebra **

The base of a triangle is terms of x is 2x+4x+2 and the height is x2+3x-4. What is the area of the triangle. I need to know am if I'm on the right track Area=1/2(2x+4x+2) (x2+3x-4)
*November 1, 2014 by Babydoll07*

**Calculus**

I know I posted this problem earlier but I dont think it will be seen anymore since it's almost at the end of the page: Find the total mass of the triangular region with coordinates (-1,0),(0,4),and (1,0). All lengths are in centimeters, and the density of the region is (x)=5+...
*October 26, 2011 by Caroline*

**Physics**

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? Can someone please explain me in detail i am really confuse :(((
*August 19, 2012 by sara*

**math problem triangle inequality help**

Two sides of a triangle are 11 and 17. How many possible lengths are there for the third side, if it is a positive integer? I tried listing them all but I get confused...Please help thank you!
*December 26, 2012 by Knights*

**circles and arcs**

YOU have a circle with a traingle inside. P being the top of triangle and Q and R, are on the sides, PQ= (8x-10) and PR=(6x) and the bottom QR= (10x+10) SAYS: a)find X b)is the triangle equilateral, isosceles, or scalene? explain. We have not done this type of work, this is ...
*May 23, 2012 by lilman*

**Math Ms. Sue writeteacher anyone plz help!!!**

Find the height of a triangle with area = 110 ft2 and base = 10 ft. 5.5 ft 22 ft 550 ft 11 ft**********
*February 3, 2016 by Love and Shine ¢¾*

**algebra**

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 two equations which represent the two sentences. Solve the system you wrote for this using any technique.
*September 1, 2010 by brandon*

**geometry**

the vertices of triangle ABC are A(1,7)B(9,3)C(3,1) a.prove that the triangle is a right triangle b.which angle is the right angle? c.which side is the hypotnuse? d.what are the coordinatesof the midpoint of the hypotnuse? e.what is the equation of the median from the vertex ...
*February 20, 2009 by melissa*

**Math**

If the hypotenuse of a chord on a circle is 8 and it is an isosceles triangle with a 90 degree angle, what is the arc subtended by the angle?
*January 28, 2008 by Alex*

**geometry**

if the measure of one angle of an isosceles triangle is 92 degrees. what is the measure of either of remaining angles
*May 25, 2010 by chantel*

**math**

XYZ is an isosceles triangle with |XY|=|XZ|=6cm and angle XYZ=120°. Calculate the length of line YZ.
*January 21, 2016 by Princess*

**geometry**

The sies of a triangle are 9cm, 12 cm and 15cm. Find the lenght of the perpendicular drawn to the side which is 15 cm.
*September 4, 2010 by rishabh*

**Geometry**

How would I find the missing side of an obtuse triangle? Using the pythagorean theorem ?
*September 5, 2010 by Amy~*

**geometry**

find the area of the equilateral triangle if a side is 8 radical 3m. round to the nearest who number
*July 14, 2011 by Hope*

**math**

Find the legth of the third side of the right triangle if a= 23 cm and b= 13 cm. I thought it was 144cm but i am not sure.
*January 5, 2012 by Jazmyne*

**math**

Find the legth of the third side of the right triangle if a= 23 cm and b= 13 cm. I thought it was 144cm but i am not sure.
*January 5, 2012 by Jazmyne*

**math: advanced geometry**

given triangle ABC with side b=14 ft, c=17 ft, and a=17 ft, find the measure of angle A.
*May 23, 2012 by kerry*

**Geometry**

Triangle ABC has side lengths AB=8, BC=12 and CA=14. Given that D, E and F are midpoints of BC, CA and AB, respectively. Find the value of AD^2+BE^2+CF^2.
*June 4, 2013 by Shin*

**Geometry**

Triangle ABC has side lengths AB=8, BC=12 and CA=14. Given that D, E and F are midpoints of BC, CA and AB, respectively. Find the value of AD^2+BE^2+CF^2.
*June 5, 2013 by Shin*

**calculus**

1. A solid is constructed so that it has a circular base of radius r centimeters and every plane section perpendicular to a certain diameter of the base is a square, with a side of the square being a chord of the circle. a. Find the volume of the solid. b. If the solid ...
*March 25, 2012 by Yuri*

**Math**

1. Write the following ratio in simplest form: 32 min:36 min 8:9 8:36 32:9 128:144 2. Marie saved $51. On Wednesday, she spent $8 of her savings. What ratio represents the portion of her total savings that she still has left? 43:8 8:51 43:51 59:51 3. The price of 8.4 ounces of...
*November 18, 2015 by YRN DJ*

**10th grade**

geometry in Triangle xyz, ab is a midsegment of xyz. ax is = 26, bz=36 ay is congruent to ax and bx is congruent ot bz. I get that side yx = 52 and side yz is equal to 72 how do you get the value of side yz? is it 72?
*April 15, 2010 by Anonymous*

**pre calc**

area of triangle XYZ given:side z=11 side x=7 and side y=13 what are the angles and area please? please explain
*December 8, 2011 by jim*

**Geometry **

A trapezoid has a perimeter of 14 feet. What will the perimeter be if each side length is increased by a factor 7? A. 21 feet B. 98 feet C. 196 feet D. 686 feet This one is def B correct?
*March 2, 2014 by anon*

**MATH**

When a draftsman draws three lines that are to intersect at one point, the lines may not intersect as intended and subsequently will form an error triangle. If this error triangle is long and thin, one estimate for the location of the desired point is the ...
*October 2, 2015 by Anonymous*

**Geometry**

Which of the following can be used to describe the triangle with the vertices listed below? F(-1, 2), G(-10, 2), H(-12, -11) I. acute II. obtuse III. right IV. scalene V. isosceles VI. equilateral --------Please help!!! Explain.
*March 26, 2012 by monique*

**math**

The base of triangle is 2cm less than the altitude and the area of the triangle is 60cm². calculate the altitude.
*February 3, 2016 by Ruth*

**Calculus**

A baseball diamond is a square with side 90 ft. a batter hits the ball and runs toward first base with a speed of 24 ft/s. (a) At what rate is his distance from second base decreasing when he is halfway to first base? Is the answer 0.0932ft/s? I don't see that it is logical ...
*December 14, 2014 by Anonymous*

**Math**

Checking my son's homework and want to see if he figured this out correctly .. i am too old to be revisiting this math ... Here is the question ... The perimeter of a rectangle patio is six times the length of the shorter side. If the shorter side is 8 feet, what is the length...
*September 18, 2007 by Mom*

**math**

what is the perimeter of a rectangle that measures 27 inches on one side and 56 inches on the other side?
*April 14, 2010 by emily*

**math**

determine the area of triangle abc when side ab= square root of x, side bc= square root of x, and side ca= the square root of the square root of x. So how do I solve it. How do I add the square root of x + the square root of x + the square root of the square root of x? what is...
*October 24, 2006 by Gina*

**Math**

An isosceles triangle has an area A, an apex angle 2 theta, and a height of h. Determine an expression for theta in terms of A and h.
*May 13, 2014 by Marina *

**Math**

An isosceles triangle has an area A, an apex angle 2 theta, and a height of h. Determine an expression for theta in terms of A and h.
*May 28, 2014 by Libby *

**Geometry**

You are building a ramp that will in the shape of a perfect right-angled triangle. the vertical height of the ramp will be 10 feet. The horizonatal base of the ramp will be 15 feet. What will be the length of the downward sloping side of the ramp? I calculated 18 feet? Is that...
*October 4, 2008 by Jen*

**Math**

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 is it 2 inches? 3 inches? 4 inches? or 5 inches?
*June 21, 2012 by Lisa*

**analytic geometry**

the base of an isoceles triangle lies on the x-axis. The coordinates of the midpoints of the equal sides pf the triangle are (2,3) and (-2,3). What are the coordinates of the vertices of the triangles? Please help.
*October 19, 2008 by Cynthia*

**Math question**

Name the triangles that are classified by angles. right, scalene, isosceles scalene, isosceles, equilateral acute, right, obtuse obtuse, isosceles, acute
*February 14, 2014 by Anonymous*

**math**

How do I calculate the area of a triangle? To calculate the area of a triangle, multiply the base times the height and divide by 2. http://www.mathopenref.com/trianglearea.html 1/2 of the base of the triangle times the height.
*February 28, 2007 by Jim*

**Geometry **

A triangle is enlarged by a factor of 3. The perimeter of the new triangle is 36 feet. What could be the lengths of the sides of the original triangle? A. 3 feet, 4 feet, and 5 feet B. 1.5 feet, 1.25 foot, and 1.25 foot C. 2 feet, 0.5 feet, and 1.8 feet D. 4 feet, 4 feet, and ...
*March 2, 2014 by anon*

**solid mensuration**

A prism measuring 5 ft tall with a triangular base whose sides measures 7 ft, 3 ft, and 9 ft. In the base, the distance from the 9 ft side to the opposite vertex is 2 ft.
*March 18, 2014 by Anonymous...*

**maths**

The area of a rectangular field is 96m2. The length of one side is 12m. The farmer needs to know the perimeter to find out how much fencing will be?
*December 1, 2014 by Alisha*

**maths**

a pyramid has a spuare base with side length 20.a right circular cylinder has a diameter of 10 and a length of 10.the cylinder is lying on its side,completely inside the pyramid.the central axis of the cylinder lies parallel to and directly above a diagonal of the pyramids ...
*March 6, 2011 by jo*

**geometry**

m<S=30, m(arc)RS=84,and RU is tangent to the circle at R find m<U. It's a circle with a triangle inscribed, only the s and r lie on the circle and u extends past circle. can someone help i do not know or understand these problems answers 27 12 54 24 m(arcDE=123 and m(...
*May 14, 2012 by lilman*

**geometry**

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 ...
*February 4, 2012 by Melanie*

**Math**

The four bases of a baseball diamond form a square 90 feet on a side. The shortstop,S, is in a position that is 50 feet from second bases and forms a 15 degree angle with the base path as shown. Find the distance between the shortstop and first base to the nearest foot
*April 11, 2010 by Joline*

**Calculus **

Rectangle side is represented by (2,3) and (-6,4). Find the perimeter of rectangle. Could someone please help~
*March 22, 2012 by Jake*

**mathematics**

The perimeter of a square is 17.6cm.find the length of one side of the square
*April 8, 2013 by raheim mckenzie*

**math**

the legth of a side of a square is represented by (3x-1). if the perimeter of the square is 68, find t he value of x
*January 27, 2016 by Anonymous*

**geometry**

If the base of a triangle is represented by x + 4 and the height is represented by 2x, which expression represents the area of the triangle? 1.(x + 4) + (2x) 2.(x + 4)(2x) 3. 4.(x + 4)(2x)
*February 13, 2012 by Anonymous*

**geometry!!!! PLEASE HELP!!!!**

Two angles of an isosceles triangle are 68∘ and x∘. What is the sum of all the (distinct) possible values of x?
*April 24, 2013 by robert*

**math**

A triangle has a base of 7 ft. and an altitude of 15 ft. Find its area to the nearest tenth. Choose the best answer from the options below: A 52.5 ft² B 53.5 ft² C 54.5 ft² D 55.5 ft²
*May 21, 2011 by makeeda*

**Geometry**

Find the area of the composite figure(right triangle), where the hypotenuse is 13m, base is 12m and the height is not given?
*March 13, 2014 by D*

**Physics**

three identical 2*`0^-5C point charges are placed a the corners of an equilateral triangle pf sodes 1m. The triangle has one apex C pointing up the page and 2 base angles A and B. Deduce the magnitude and direction of the force acting at A thanks!
*February 25, 2009 by Anonymous*

**algebra 1**

The length of a rectangle is twice the width. The perimeter is 42cm. find the length of each side.
*September 8, 2011 by Anonymous*

**maths**

the diagonals of a rhombus are 24 meter and 18 meter find the area,length of a side and perimeter?
*May 21, 2012 by jennie cribzon*

**geometry**

An army base is enclosed by a wire fence so that it forms a circular compound. The entrance to the base is located at X(3, 6) and the exit is at Y(9, 14). X and Y are end points of a diameter of the circle. A search tower is positioned at Z(2, 13) on the circumference of the ...
*July 11, 2012 by Manda*

**geometry and combinatorics**

An equilateral triangle with side length 33 is divided into 33^2 smaller unit equilateral triangles each with side 1, forming a triangular lattice. We color each segment of length 1 either Red, Blue or Green, subject to the condition that each small unit equilateral triangle ...
*April 30, 2013 by sanji*