Question

Have to find the side length of x for the following right triangle?​

Answer 1

Answer:

x = 9

Step-by-step explanation:

Pythagorean theorem:

     $\sf (leg_1)^2 + (leg_2)^2 = hypotenuse^2$

                $x^{2} + 12^2 = 15^2\\\\x^{2} + 144 = 225$

                          x²  = 225 - 144

                          x²  = 81

                          x² = 9²

                         x = 9

                          $\boxed{x = 9}$