Question

If the similar figures shown below are right triangles, what is the value of x?

Answer 1

12

Explanation:

Following the Pythagorean theorem, c^2 - b^2 = a^2.

If they are similar, b will be 16 and c will be 20.

20^2 - 16^2 = 144

144 = 12^2 so x=12