Diagonals of an isosceles trapezoid are perpendicular to each other and the sum of the lengths of its bases is 2a. What is its area?

Diagonals of an isosceles trapezoid are perpendicular to each other and the sum of the lengths of its bases is 2a. What is its area?

A rhombus has a perimeter of 104. One altitude is 10. Find the exact area of the rhombus.

I need help with this question because I don't know how to do it.

Matt has two posters for his science project. Each poster is a rectangle. The length of the larger poster is 11 inches. The length of the smaller poster is 6 inches. What is the area...

I dont know how to solve the area without the bases given to me

Please help this is urgent!!!! This is all of the problem and it gives nothing more

trapezoid JKLM has an area of 54ft squared. If RC=6 feet and ML=8 feet, find JK

I NEED HELP WITH GEOMETRY !

Rounded to nearest tenth

There is a Circle, with a radius of R = 8.17. On the outside of the right of the circle is a point, directly right of the midpoint of the circle. 2 congruent lines leave from the point, and touch...

help me please

figure has 3 90 degree angles. start at left corner 1 angle, 2nd corner 2nd angle, 3rd corner is 3rd 90 deg. <. continue up the figure , the next < is x, last < is x. ...

I have a non-square area, one side is 7 feet, opposite to it is 13 and half feet. other side is 28 feet, would be grateful if any one can let me know how many feet that opposite side to 28 feet should...

The line has y-intercept of 3 and an x-intercept of -5.

Find the perimeter of the polygon with vertices A (-5,2) B (1,5) C (3,1) D (-3,-2)

how do you figure this out

polygons cube

Image: https://media.glynlyon.com/g_geo_2013/8/23183_5.gif Find the ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if XY = 2, AC...

The image: https://media.glynlyon.com/g_geo_2013/8/23183_5.gif Find the ratio of the area of triangle XBY to the area of triangle ABC for the given measurements, if BY =...

The sides of a quadrilateral are 3, 4, 5, and 6. Find the length of the shortest side of a similar quadrilateral whose area is 9 times as great. Answers to choose from: A...