Question

please help!!
find x

Answer 1

do you have the side on the top ?

Answer 2

no it says the diagonal is 18. find the length of its side

Answer 3

is it a square ?

Answer 4

yeah its a square

Answer 5

You have to find other shapes in the square that are determined by the diagonal

Answer 6

and the sides

Answer 7

but to use the pythagreom theorem you need 2 sides and i only have 1

Answer 8

of the triangle

Answer 9

yes but you actually have the one side length two times