Question

Use the Pythagorean theorem to find the length of the leg in the triangle shown below 12 15

Answer 1

9 = x (assuming 15 is the hypotenuse)

Explanation:

15^2 = 12^2 + x^2

225 = 144 + x^2

subtract 144 from both sides

81 = x^2

square root both sides

9 = x