Question

the perimeter of an isosceles trapezoid is 40 ft.the bases of the trapezoid are 11ft and 19ft. find area of trapezoid?

Answer 1

Does this help?

Answer 2

kind off but how do we find height ??? coz i have to find area

Answer 3

Okay, height. Just a second.

Answer 4

First we have to find the other sides of the tapezoid

Answer 5

11+19+2x=40

Can you solve that

Answer 6

yup

Answer 7

both side are 5

Answer 8

Okay good. Now let's make on side into a triangle.

Answer 9

the height will be the dotted line. Do you know how to find that?

Answer 10

nope not quite sure

Answer 11

Okay it's a right triangle, when one side is missing for RIGHT triangles we use the Pythagorean theorem

Answer 12

\[a ^{2}+b ^{2}=c ^{2}\]