Saturday

May 28, 2016
Number of results: 6,359

**TRIG**

Triangle FGH has vertices F(0, 10), G(10, 0), and HR(1, -1). After rotating triangle FGH counterclockwise about the origin 75º, the coordinates of G' to the nearest hundredth are (2.59, ?).
*October 30, 2012 by karina602*

**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*

**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*

**maths**

a triangle has sides 8cm and 5cm and an angle of 90 degrees between them. Calculate the smallest angle of the triangle.
*January 8, 2014 by shegster*

**Pre calculus**

For the most part, will a law of cosines always be one triangle? As in one triangle to solve?
*March 26, 2014 by Luis *

**TRIANGLE**

length of AB,BC of scalene triangle ABC are 12,8 rerspectively.the size of angle is 59degree.find the length of side AC
*September 25, 2014 by PUNAM*

**Maths **

PQRS is parallelogram and K is the midpoint of the side PQ Prove that area of (triangle PKS )= 1÷2 area of (triangle SKR )
*December 27, 2015 by Anonymous*

**Math **

The side of a triangle have lengths of x, x+4, and 20. Specify those values of x which the triangle is acute with longest side 20.
*February 9, 2016 by Adeline *

**Math**

The area of parallelogram with base 2.5 cm height 3 cm equals to triangle its side length 5 cm Find the height of triangle.
*April 5, 2016 by Mido*

**Maths**

The longest side of a triangle measures 267m if two angles are 37 and 48 find the shortest side of the triangle
*May 11, 2016 by Israel*

**Math**

You have a 4inch by 6inch notecard and you intend to make a triangle out of the notecard by using one long side (call it AB) as the base of your triangle and by then placing the third vertex (point E) somewhere on the opposite side (call it CD). Where should you place point E ...
*September 15, 2011 by Tyler*

**Math**

The perimeter of triangle PQR is 78, PQ=18, triangle PQR ~ triangle STU, AND ST=6. What is the perimeter of triangle STU?
*March 4, 2011 by Anonymous*

**Math**

Can someone show me how to solve these questions. A plane is is flying 240 mph heading N60°E. The wind is blowing S30°E at 30 mph. 6. What is ground speed of the plane? The ground speed of the plane is 266.40. 7. What is the smallest angle in the triangle? 8. What is ...
*March 16, 2014 by Crewniverse*

**Algebra**

A roof truss is in the shape of a triangle with height of x feet and a base of 2x + 1 feet. Write a polynomial A (x) that represents the area of the triangle. Find A (5).
*July 14, 2008 by Don*

**calculus-optimazation**

The sum of the perimeters of an equliateral triangle and square is 10. Find the dimensions of the triangle and square that produce a minimum total area.
*February 25, 2009 by meghan*

**Alge2/trig**

Should the triangle be solved beginning with Laws of Sines or Laws of Cosines. Then solve the triangle and round to the nearest tenth. a=16, b=13, c=10
*March 14, 2009 by Sha*

**Chemistry**

4Al + 3O2->2Al2O3(triangle)H= -1669kj/mol 2Fe + O2 ->2FeO (triangle)H= -822 kj/mol Determine enthalpy change?
*June 6, 2009 by Edna*

**Math**

In right triangle ABC, altitude CD is drawn to hypotenuse AB. If AD equals 4 and AC exceeds DB by 1, find DB. It is from a worksheet about proportions in a right triangle.
*February 21, 2010 by Emily*

**pre algebra**

the measure of the angles of triangle RST are the ratio 2:3:5. find the measure of each angle, and classify the triangle as acute, right or straight
*June 20, 2010 by lavena*

**college algebra**

Perimeter of a triangle. The perimeter of a triangle is 195 mm. If the lengths of the sides are consecutive odd integers, find the length of each side.
*August 13, 2010 by Nonnie*

**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.
*October 26, 2010 by Daniel*

**math**

An equilateral triangle has a perimeter of 33 inches. What would the perimeter of a square whose sides each measure the same length as the side of the triangle?
*December 5, 2011 by chanelle*

**Geometry**

The perimeter of triangle ABC is 29 meters. Line segment AD bisects angle A. Find AB and AC. CD=5cm, DB=4 cm.(triangle angle bisector theorem)
*December 28, 2011 by Lily*

**Calculus**

A right triangle with hypotenuse y and equal legs of size x has a perimeter of 36m. Express the area of the triangle solely in terms of the hypotenuse y.
*February 26, 2012 by Nurcan*

**Geometry**

The length of the longer leg of a 30-60-90 triangle is 24 feet. How do I find the length of the hypotenuse of the triangle? The answer must be a radical in simplest form.
*May 23, 2012 by Bonnie*

**math**

The triangle inscribed within square ABCD has, as its base, side AD, and has a height of 6 cm. If the area of the triangle is 21 cm2, what is the area of the shaded region?
*September 13, 2013 by Anonymous*

**math**

Right triangle DEF has sides that measure x, x, and x squared for the some value of x. What is the area of triangle DEF to the nearest 0.1 square unit?
*April 20, 2014 by Melissa *

**Trigonometry**

Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find the coordinates of R' to the nearest hundredth after rotating triangle PQR counterclockwise about the origin 45º.
*October 17, 2014 by TeeKay*

**Trigonometry**

Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find the coordinates of R' to the nearest hundredth after rotating triangle PQR counterclockwise about the origin 45º.
*October 17, 2014 by Molly*

**Trigonometry**

Triangle PQR has vertices P(0, 1), Q(0, -4), and R(2, 5). Find the coordinates of R' to the nearest hundredth after rotating triangle PQR counterclockwise about the origin 45º.
*October 17, 2014 by Molly*

**Math**

An equilateral triangle is inscribed in a circle. If the radius of the circle is 10 cm, calculate the length of a side of the triangle. Answer to nearest whole centimetre
*November 16, 2014 by Anonymous*

**solid**

ABC is a right triangle with C as the right triangle and sides AC=6 cm and BC= 8 cm. line segment CD is drawn perpendicular to both AC and BC at C. if CD= 12 cm, find the distance from D to midpointS of AB
*February 4, 2015 by edong*

**Geometry B**

Find the exact length of the altitude drawn to the hypotenuse. Do not round. The triangle is not drawn to scale. A triangle with base measures of 9 & 17. Please help
*February 12, 2015 by Anonymous*

**Maths**

The ratio of the corresponding sides of two similar triangles are 2:5.Calculate the area of the larger triangle if the area of the smaller triangle is 28 square.
*January 4, 2016 by Anita*

**Math- HELP**

There is a triangle inside of a circle. I have to find area of the shaded region which is the circle. So i would have to substract the area of the triangle from the area of the circle. the radius of the circle is 3 inches. I found the area of the circle..it is 28.27 in.^2 I am...
*December 2, 2010 by MK*

**Math**

how do i find the height of a triangle the base is 18 inches, the angled side is 82 inches and it is a right triangle
*May 19, 2008 by LT*

**Math**

If you have 10 pennies in a triangle, move 3 pennies to make the triangle point in the opposite direction.
*September 25, 2008 by Jenny*

**math**

the circumcenter of a triangle is equidistant from the three blank of the triangle? i have to find the blank work
*May 20, 2009 by help*

**algebra 2**

solve the triangle triangle BCD <D=90 degrees <B=21 degrees b=4 show all work and steps!
*May 5, 2010 by Tristan*

**Geometry**

What is the ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if XY is similar to AC?
*May 17, 2010 by Kaley *

**Geometry **

What is he ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if XY is similar to AC, and BY=3, YC=2 ?
*May 17, 2010 by Kaley *

**Geometry**

What is the ratio of the area of triangle XBY to the area of the triangle ABC for the given measurements, if XY is similar to AC, and XY=2 and AC=3
*May 17, 2010 by Kaley *

**Math**

The area of a triangle is 75 sq in. Calculate the possible angles formed by the triangle's 12-inch and 15-inch side.
*August 11, 2010 by jess*

**Algebra**

one leg of a triangle is 4. Another leg measures 7. If the perimeter of the triangle is 17. What is the length of the other side ?
*October 7, 2010 by Adilene*

**math**

Find the ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if BY = 3, YC = 2
*June 6, 2011 by Anonymous*

**Math**

The lengths of the sides of a triangle are 6,7, and 9. What is the longest side of a similar triangle whose shortest side is 4.
*September 23, 2011 by Della*

**geometry**

Points P(1, 5) and Q(4, 1) on a coordinate grid represent side PQ of triangle PQR. What is the length of side PQ of the triangle?
*November 11, 2011 by Billy*

**geometry**

a triangle has 2 sides that equal 4 inches. the other side equals 2 inches. what kind of triangle is it?
*November 21, 2011 by morgan piccini*

**math**

Draw a kite that has a triangle with sides 1, 1, 2x next to a triangle with sides 2x, 2, 2. Find the area A and the x that maximizes it.
*August 8, 2012 by rolan*

**math**

the area of triangle wxz in the diagram below is 48 cm2. what is the perieter in centieters of triangle wxz
*November 12, 2012 by jerome*

**Math**

An equilateral triangle is inscribed in a circle. Each side of the triangle has length x. What is the area of the circle? Please help
*December 13, 2013 by Kizzy *

**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*

**math**

a triangle has sides 8cm and 5cm and an angle of 90 between them. calculate the smallest angle of the triangle
*April 24, 2016 by Anonymous*

**triangle**

1,600x8= what on a math triangle i cant get it
*March 11, 2008 by lexie*

**PLEASE HELP!!!!! (Right Triangle Question)**

Point N is on hypotenuse BC of triangle ABC such than angle CAN is 45 degrees. If AC=8 and AB=6, find AN. I did Pythagorean Theorem for triangle ABC, and hypotenuse BC will be 10. I don't know how to continue from there. Oh, I'm also unsure about this, but if angle CAN is 45 ...
*April 9, 2012 by My Name Is Bob*

**Physics**

An equilateral triangle initially has side length equal to 17 cm. Each vertex begins moving in a straight line towards the midpoint of the opposite side at a constant rate of 2.3 cm/s, continuously forming progressively smaller equilateral triangles until it disappears. At ...
*March 23, 2016 by Anonymous*

**Trigonometry**

in triangle abc, if sin c= (sin a + sin b )/ ( cos a + cos b ) prove that triangle abc is a right-angle triangle.
*July 13, 2008 by Tommy*

**math**

i have a question in math (( distance between two points )) the vertices of a right triangle are S(-2,-2), T(10,-2), and R(4,5). find the area of the triangle. please in detales .. thank u
*November 9, 2007 by mota*

**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**

she rolls a cube that has a square triangle circle triangle star rectangle, what is the probability the cube will land on a face with a polygon on her first roll?
*May 17, 2010 by Anonymous*

**Geometry**

The shape is a triangle with a line in the middle. How do I write an indirect proof with this information? triangle LMN . MP is down the middle Given: NP > LP Prove: MP is not a median
*September 27, 2010 by Anon.*

**Trig**

Consider a triangle ABC like the one below. Suppose that A=45 degress, B=34 degress, and a= 70. Solve the triangle. Round your answers to the nearest tenth.
*May 15, 2011 by Jennifer*

**maths**

A circle has a circumference of 1 Cm and an equilateral triangle has sides each 1 Cm long. How many complete turns of the circle will it take to go around the triangle to its original starting position.
*September 16, 2011 by jojo*

**math**

One side of triangle is 10 centimetres, two angles next to that side are 30° and 60°. I need to find all three angle bisectors of triangle.
*January 15, 2012 by eve*

**algebra**

a triangle have lengths that are consecutive whole numbers and its perimeter is greater than 2008 cm.If the least possible perimeter of the triangle is x cm, find the value of x.
*March 17, 2012 by Anonymous*

**pre algebra check**

The measures of two angles of a triangle are given. Tell whether the triangle is acute, right, or obtuse. 19°,35° I think its obtuse
*May 29, 2012 by amy*

**math**

One leg of a right triangle is 3cm more than half the length of the other leg.the area of the triangle is 54cm^2. How long are each of the legs.
*February 13, 2013 by shonye*

**math**

One leg of a right triangle is 3cm more than half the length of the other leg.the area of the triangle is 54cm^2. How long are each of the legs.
*February 13, 2013 by shonye*

**math**

the sum of the lengths of any two sides of a triangle must be greater that the length of the third side. what are the possible valuse of x for this triangle. if the sides are (x+5)cm, and (3x)cm, and 40cm
*April 4, 2013 by mandie*

**math**

Please Help! The perimeter (distance around) of a triangle is 7/x+1, The sum of two sides of the triangle is 3/x, the distance of the remaining side follows he format ax+b/x^2+x. what is the vale of a?
*October 2, 2013 by sam*

**Algebra NEED HELP PLEASE**

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**

The longer leg of a triangle is one foot less than twice the shorter leg. The hypotenuse is 17 feet long. Find the area of the triangle.
*April 15, 2014 by Jane*

**Math**

In a triangle ABC, PQ is the midpoint of AB and AC. PQ = 2cm, BC =3cm. The area of trapezium PQCB = 10cm^2. If the area of triangle APQ = xcm^2. Calculate the value of x.
*July 1, 2014 by Christopher*

**Math**

The sides of a triangle are 6cm, 7cm, and 10cm. Find the length of the longest side of a similar triangle whose shortest side is 12cm
*August 25, 2014 by Agnes Cuba*

**Geometry **

The areas of two similar triangles are in the ratio 36:25. If one side of the larger triangle is 60cm, what is the length of the corresponding side of the other triangle?
*February 9, 2015 by rhianne *