Question

Anyone help?

Answer 1

Hint: Use proportional method.

Are there any answer choices?

Answer 2

24, 12, 36, 42

Answer 3

u can use property of similar triangles(as cross section is parallel to base)
let the unknown side be x
6/(6+9)=x/15
find x,the perimeter is 4x.....as cross section is square...

Answer 4

I have no idea. I am just goin to put 12

Answer 5

(6/15)*15 = x.

After finding x, multiply it by 4 (perimeter of square.)