Friday

October 21, 2016
Number of results: 6,590

**pre-algebra**

The perimeter of an equilateral triangle is 7 inches more than the perimeter of a square,and the side of the triangle is 5 inches longer than the side of square.Find the side of the triangle.

*September 22, 2007 by Nita*

**Math: Geometry**

isosceles trapezoid ABCD is shown below with a line ef drawn through its center. Of the isosceles trapezoid is dilated using a scale factor of 1/2 and a line is drawn through the center of the new dilated figure, what relationship will that line have with line EF? An image ...

*December 8, 2015 by Blah*

**Circumcenter of Triangle in circle**

Equilateral triangle ABC and a circle with center O are constructed such that BC is a chord of the circle and point A is the circumcenter of BCO in its interior. If the area of circle with center O is 48pi, then what is the area of triangle ABC? How to do this? I don't ...

*March 29, 2013 by Knights*

**Math/Trig**

Given A=56degrees, C=61degrees, and b=10.5, solve triangle ABC. If no triangle exists, explain why. If two solutions exist, write both. Round your answer to the nearest tenth

*January 12, 2011 by Tabby*

**Math/Trig**

Given A=56degrees, C=61degrees, and b=10.5, solve triangle ABC. If no triangle exists, explain why. If two solutions exist, write both. Round your answer to the nearest tenth

*January 13, 2011 by Tabitha*

**calculus**

a right triangle is formed in the first quadrant by the x- and y- axes and a line through the point (1,2). write the length of the hypotenuse as a function of x. find the vertices of the triangle such that its area is a minimum.

*March 17, 2013 by ej*

**Math**

Native Americans made baskets like this one in the early 1900's. If two sides of the triangle shown on the basket measure 1/4 in., and the third side measures 3/8 in., what is the perimeter of the triangle?

*February 23, 2015 by Amri*

**geometry**

I have a triangle ADB. AD = 2, AB = 3 DB is x. I need to find x. Additional info. AB/BC = BD/BD = AD/BD. Other triangle is DCB. DB is x, DC is 8, CB is y. Booth of triangles are connect by DB. Figure resembles a kite. (Needed to complete 3/y =x/x= 2/x. Is this correct?)

*April 20, 2015 by robin*

**math**

triangle ABC has vertices A(3,4), B(4,-3) and C(-4,-1). a. draw a sketch of the triangle b. draw the altitude from vertex A c. find the slope of side BC which is =-1/4 d. find the slope of the altitude from A which is 4 e. find the equation of the line that contains this ...

*October 27, 2010 by Ted*

**Physics**

This question was posted earlier but the explanation given was confusing. The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an axis through the ...

*November 14, 2011 by Me*

**Maths Congruence**

(1)Are two triangles congruent if two sides and an angle of one triangle are equal to two sides and an angle of the other?If not then under what conditions will they be congruent? (2)How to construct Triangle(ABC) and Triangle(PQR)such that they are equal in area but not ...

*September 20, 2016 by Varun Dhawan*

**Geometry**

Which is the hypotenuse-angle theorem? ________________________________________ A. If the hypotenuse and an acute angle of a right triangle are congruent to the corresponding parts of another right triangle, then the triangles are congruent. B. If the hypotenuse and an obtuse ...

*June 30, 2010 by Superman*

**Repost- Calculus; someone please help**

Please help out. Thank you. A right triangle has one leg on the x-axis. The vertex at the right end of that leg is at the point (3,0). The other vertex touches the graph os y=e^x. the entire triangle is to lie in the first quadrant. Find the maximum area of this triangle....

*February 9, 2011 by Amanda E.*

**Math **

Determine the number of triangles that could be drawn with the given measure. Then, find the measures of the other angles and the other side in each possible triangle. Round side lengths to the nearest tenth of a unit and angle measure to the nearest tenth of a degree, where ...

*June 10, 2014 by Han*

**Math**

A triangle has a perimeter of 35inches. The length of side a of the triangle is twice the length of side b. Side c is 5inches longer than side a. What is the length of each side of the triangle?

*September 13, 2011 by Bobbi*

**algebra**

A triangle has an area of 20 inches squared. Every dimension of the triangle is multiplied by a scale factor, and the new triangle has an area of 180 inches squared. What is the scale factor.

*January 16, 2012 by Anonymous*

**Algebra 1**

a triangle has an area of 20 inches squared. every dimension of the triangle is multiplied by a scale factor, and the new triangle has an area of 180 inches squared. what was the scale factor?

*October 6, 2013 by Shanelle*

**geometry**

if triangle FGH~ to Triangle PQR, FG = 6, PQ = 10 and the perimeter of trinagle PQR is 35 find the perimeter of triangle FGH

*December 13, 2010 by Chris*

**Geometry**

A plane is is flying 225 mph heading S25°W. The wind is blowing S80°E at 60 mph. 11. What is the bearing of the plane? 12. What is the smallest angle of the triangle? 13. What is the largest angle of the triangle? 14. What is the remaining angle of the triangle? 15. What is ...

*June 5, 2012 by Amber *

**geometry**

An isosceles trapezoid has base angle 45 degrees and bases of length 12 and 32. Find its area.

*April 28, 2010 by Anonymous*

**Geometry**

find the measure of each angle of an isosceles trapezoid if two of the angles has measures in the ratio of 2:3.

*September 21, 2011 by Lissa*

**Reading**

Is the main characher in Football Futigive more like an equilateral isosceles or scalene?

*August 28, 2013 by Charles*

**math**

a rectangle and a triangle have equal areas. if the base of the triangle is 32 inches,what is the lenght of the altitude drawn to the base? a)12 b)16 c)6 d)8 e)9

*October 2, 2007 by christal*

**Algebra Honors**

The length of the base of a triangle is 4 times its altitude. If the area the triangle is 162 cm2, find the altitude.

*April 2, 2009 by Raj*

**math**

Try to draw a triangle with 2 right or obtuse angles. What generalizations can you make about the angles of a triangle? Explain.

*April 21, 2010 by Mia*

**algrbra/trigonometry**

in triangle ABC, angle a=120, b=10, and c=18. What is the area of triangle ABC tot he nearest square inch?

*May 18, 2010 by Sally*

**Areas and volumes**

The base of a pyramid is a right triangle. The legs of the triangle measure 6 in and the altitude of the pyramid is 5 in. Find the volume.

*June 3, 2010 by Ariel*

**geometry**

Given the right triangle JKL, whose arean is 32 sqare units, determine if it is an isoceles right triangle.

*October 26, 2010 by Nina*

**5th grade**

the lengths of two sides of a triangle are 15 inches each and the third side measures 10 inches what kind of triangle is that

*November 11, 2010 by mara*

**geometry**

Use SAS (Side-Angle-Side congruence) to explain why triangle WXY congruent to triangle WZY

*December 1, 2010 by phoebe*

**Math**

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!!!!!

*January 2, 2011 by Gigi*

**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>?

*January 18, 2011 by dylan*

**Math**

The perimeter of two equalater triangles are in ration 2:3. If the perimeter of the smaller triangle is 16 cm what is the measure of a side of the larger triangle?

*April 7, 2011 by xAlgebrax*

**geometry**

the base of a triangle is 3cm greater thanthe height.the area is 27cm find the heightand base of the triangle

*October 1, 2011 by Anonymous*

**math**

Triangle JKM has j=28cm, k=17cm, and m=13cm. a. find the measure of the smallest angle b. find the area of the triangle

*November 25, 2011 by Gary*

**geometry**

In a right _angled triangle one of the acute angles is 20 dgrees greater than the other.find the angles of the triangle

*April 21, 2012 by Tobi*

**Geometry **

Triangle ΔABC has vertices A(2,5), B(8,1) and C(-2,-1) and is a right triangle. If the slope of AB is -2/3 and the slope of AC is 3/2, are the lines parallel, perpendicular or neither?

*July 14, 2012 by Math*

**math**

Triangle ΔABC has vertices A(2,5), B(8,1) and C(-2,-1) and is a right triangle. If the slope of AB is -2/3 and the slope of AC is 3/2, are the lines parallel, perpendicular or neither?

*July 14, 2012 by ashley*

**Trigonometry**

Two sides of a right triangle are 8, 15 and 17 units. if each side is doubled, how many sqare units will the area of the new triangle be?

*September 8, 2012 by Roy*

**mathURGENT!!!!**

the midpoints of the sides of a triangle are (1,1),(4,3),and (3,5). find the area of the triangle. what is the answer and can u explain how u got it step by step? please...

*October 22, 2012 by dan*

**maths**

2 equal sides of a triangle are 4m less than 3 times the third side find the sides of the triangle if the perimeter is 55cm.

*December 27, 2012 by adis*

**Maths**

Triangle ABC has lengths AB=14, AC=18 and also a given angle of ∠BAC=30∘. What is the area of triangle ABC?

*April 12, 2013 by Ian*

**GEOMETRY TANGENTS **

Triangle ACE is a circumscribed triangle. Points B, D and F are the points of tangency. If AC= 16 and AE is 9 cm and CE = 15 cm . Find AD, FE and CD HELP PLEASE VERY URGENT

*December 17, 2013 by Keeley*

**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.

*February 20, 2014 by Anonymous*

**math**

Triangle abc and triangle xyz are similar. If ab,bc, and ac are 10, 13, and 14 inches respectively, and xy is 11 inches, find xz to the nearest tenth of an inch.

*February 24, 2014 by chris*

**math**

The altitude of an equilateral triangle is 6 square 3 units long. The length of one side of the triangle is ____ units.

*July 14, 2014 by kyle*

**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*

**Geometry**

The sides of a triangle have lengths of 9, 11, and 16 units. What is the perimeter of a similar triangle with its longest side 24 units in length?

*January 8, 2015 by Danielle*

**GEOMETRY**

What are the angle measures of the triangle? A right triangle with a hypotenuse measuring 14sqrt3 and legs measuring 7sqrt3 and 21 30°, 60°, and 90° 45°, 45°, and 90° 60°, 60°, and 60° They cannot be determined.

*February 17, 2015 by Anonymous*

**math**

In the triangles, we have XY = 2AX = 2YB and AZ/ZC = 2/3. Find the ratio of the area of triangle YBC to the area of triangle ZYC.

*March 29, 2015 by will*

**math**

The lengths of the sides of a triangle are 13, 14 and 15 units. Find the shortest side of a similar triangle whose longest side is 21.

*July 9, 2015 by Ana*

**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 ...

*October 12, 2006 by Spirit*

**Math...Geometry**

Hello, Can someone please tell me if I worked this out correct and ended with the right answer? Thank You... I need to find the area and Height of this right triangle ( only knowing the lengths of its sides)side 6,5,11... Is this correct? sides 6, 5, 11 -- 6+11+5/2 =22/2=11 A&...

*August 3, 2007 by Mandi*

**geometry**

the hight of a triangle is four times the length of the base. find the base and height of the triangle if the area is 18 square inches?

*August 24, 2008 by yanet*

**Math**

the ratio of the corresponding side lengths of two triangles is 5 to 3. the perimeter of the larger triangle is 48m. What is the perimeter of the smaller triangle?

*April 9, 2010 by Alexis*

**Vectors**

A triangle has vertices A(2,3,7), B(0,-3,4) and C(5,2,-4) A) determine the largest angle in the traingle b) determine the area of of the triangle pls tell me how to solve the problem

*May 14, 2010 by Marie*

**Math**

The side lengths of a right triangle are each an integral number of units. If one of the legs is 13 units, what is the perimeter of the triangle? Thanks ~Zach

*May 20, 2010 by Zach*

**pre algebra**

the measures of the angles of (triangle) RST are in the ratio 2:3:5. find the measures of each, and classify the triangle as acute, right, obtuse.

*June 16, 2010 by lavena*

**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.

*January 17, 2011 by Alyssa*

**geometry**

A right triangle has a base that is 2 more than twice the height. Find the length of the base for the triangle. If the area is 30 square units.

*January 31, 2011 by Raj*

**math**

Plot the points A(2,2), B(4,6),C(10,-2)Notice that these points are vertices of a right triangle (the angle is 90 degrees). Find the area of the triangle ABC:

*February 3, 2011 by katrina*

**math**

in the triangle ABC , AD ray bisects the exterior angle of the triangle at A and intersects CB ray at D . if AB = 6 cm , AC = 8 cm , and BC = 5 cm , find the length of BD line segment

*March 2, 2011 by Hossam Nassar*

**maths**

perimeter of a equilateral triangle is given as 42 cm. Find the perimeter of a shaded part of triangle if the 3 sectors of a circle marked are identical

*March 12, 2011 by hesham*

** geometry **

the perimeter of triangle ABC is 21 units. Give the perimeter of the triangle formed by its midsegments (connecting midpoints of all sides).

*April 3, 2011 by sreve*

**math**

An equilateral triangle is inscribed in a circle. The radius of the circle is 21 in. Determine the side length of the triangle to the nearest 10th of an inch

*June 20, 2011 by Leasha*

**statistics**

A density graph for all the possible speeds between 0 mph and 320 mph is in the shape of a triangle. What is the height of the triangle?

*November 3, 2011 by Bob*

**math**

Use (Triangle) PQR with coordinates P(2, –1), Q(0, 5), and R(–2, 0). Which matrix expression can be used to translate (triangle)PQR 1 unit left and 3 units up?

*January 25, 2012 by danny*

**geometry**

An equilateral triangle has an altitude of 15m. What is the perimeter of the triangle. Could someone please explain how to find perimeter. I believe the answer to be 60 sq rt 3m

*February 13, 2012 by Brandon*

**math**

shape has 4 side: at least one angle measure90 is it a.righ triangle .b.right trapezod c.right triangle b.rhombus

*February 16, 2012 by vannyboo<3*

**geometry**

leg xy of the right triangle is twice as long as leg yz. if the area of the triangle is 36cm to the second power what is the length icm of xy?

*February 22, 2012 by demetra*

**geometry**

The coordinates of the vertices of triangle CDE are C(1,4), D(3,6), and E(7,4). If the triangle is reflected over the line y=3, what are the coordinates of the image of D? I think (3,-6), but not real sure.

*March 5, 2012 by Brandon*

**math**

a triangle has sides 9cm,12cm,18cm.the longest side of a similar triangle measures12cm.what is the length of other sides

*July 31, 2012 by vedant*

**Math (Adv. Functions)**

Given that triangle ABC with sides a, b, and c, show that the area of the triangle is given by A = ((a^2)(sinB)(sinC))/((2sin(B+C)))

*December 12, 2012 by KnowsNothing*

**Maths **

2equal sides of triangle r4m less than 3times the third side find the sides of triangle if perimeter is55cm

*December 29, 2012 by Anonymously*

**Geometry**

If x is the midpoint of line vy and wz And the prove is triangle vwx is congruent triangle yzx can you help me solve this using two column prove

*December 5, 2013 by Anonymous *

**Algebra **

If x is the midpoint of line vy and wz And the prove is triangle vwx is congruent triangle yzx can you help me solve this using two column prove

*December 5, 2013 by Anonymous *

**math**

Question 2.2. The height of a triangle is 5 m less than its base. The area of the triangle is 42 m2. Find the length of the base. (Points : 1) 12 m 11 m 8 m 7 m i think it's 12m

*June 11, 2015 by tony*

**Math**

In right triangle ABC above, segment DE is drawn from side AB to AC as shown, forming right triangle ADE. If BC is 24, AB is 12, and BD is 4, what is the length of DE? A.18 B.16 C.15 D.12 E.8

*August 7, 2015 by Anonymous*

**Geometry**

Two similar triangles have a scale factor of 3 : 5. The altitude of the larger triangle is 24 inches. What is the altitude of the smaller triangle?

*May 16, 2016 by Jessica*

**Geometry **

Rectangle ABCD ~ Rectangle EFGH. which similarity postulate or theorem lets you conclude that triangle BCD ~ Triangle FGH

*June 2, 2016 by Gen*

**math-**

how do you find the area of a triangle? 1/2 x B x H (one half times the base length times the height of the triangle)

*February 13, 2007 by jules*

**math**

what is the perimeter of an equilateral triangle if one side of the triangle has the same length as the side of a square with an area of 25?

*November 4, 2008 by kassidy*

**Math**

A(-11,8)B(2,-6) and C(-19,-8) are the vertices of Triangle ABC. N(X,Y) is a point on AC such the BN is Perpendicular to AC. Find Area of Triangle ABC. PLEASE HELP!!!

*January 24, 2009 by Anonymous*

**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?

*May 17, 2010 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?

*May 18, 2010 by buggy*

**maths**

the sides of a triangle are in the ratio 2 ratio 3ratio 4. if the shortest side measures 6cm,what is the perimeter of the triangle?

*September 24, 2010 by Krtin*

**geometry**

If a triangle has angle measures 15, 120 and 45, and the length of the side between the 15 and 120 angles is 8, what is the area of the triangle?

*February 10, 2011 by Linda*

**geometry**

Find the area of triangle ABC with A = ((-5), 1), B = ((-8), 1), and C = (9, (-8)). Graph the triangle on your own graph paper. Do not include units.

*February 24, 2011 by callie*

**geometry**

An Equilateral triangle (ABC) is inscribed inside a circle. The side lengths of the triangle are 8 cm. What is the radius of the circle?

*March 29, 2011 by Katy*

**Geometry**

The scale factor for two similar triangles is 4 : 3. The perimeter of the smaller triangle is 12. What is the perimeter of the larger triangle?

*April 27, 2011 by Tyler*

**geometry**

In triangle ABC, A (o,o) , <BAC = 30 degree , AC =2 and midpoint of segment AB is (4,0) and if B is on the x axis, find the centroid of triangle ABC

*June 20, 2011 by Lakshmi*

**geometry**

Which composition would produce an image triangle whose area is not equal to the area of the original triangle?

*December 4, 2011 by jen*

**geometry**

the sides of a triangle have lengths 4x+1, 2x+1 and 6x-1. if the lengths of the longest side is 6x-1, what values of x make the triangle obtuse?

*January 19, 2012 by Anonymous*

**Algebra**

the altitude of a triangle is 3m less than half its base. If the area of the triangle is 300 m^2 find the measure of the base.

*February 11, 2012 by Sarah*

**6th grade math**

The vertices of triangle ABC are a(8,23) B(2,2) C(2,8). What are the coordinates of the vertices if the triangle is reflected across the x-axis? is it A(8,2) B(2, -2) C(2, -8)?

*April 6, 2012 by i♥zee*

**geometry**

The scale factor for two similar triangles is 4 : 3. The perimeter of the smaller triangle is 12. What is the perimeter of the larger triangle?

*May 13, 2012 by adeny*

**math**

The scale factor for two similar triangles is 4 : 3. The perimeter of the smaller triangle is 12. What is the perimeter of the larger triangle

*July 5, 2012 by luis*

**math**

The scale factor for two similar triangles is 4 : 3. The perimeter of the smaller triangle is 12. What is the perimeter of the larger triangle

*July 5, 2012 by luis*

**arithmetic **

The measure of two angles of a triangle are 35* and 45*. What is the measure of the third angle of the triangle? A. 95* B. 100* C. 105 D. 110*

*March 19, 2013 by Peltier*

**GEOMETRY TANGENTS **

TRIANGLE ACE IS A CIRCUMSCRIBED TRIANGLE. POINTS B,D AND F ARE POINTS OF TANGENCY . IF AC= 16 AND AE= 9 CM AND CE = 15 CM FIND AD, FE, AND CD. Thank you very mych

*December 17, 2013 by Keeley*