Question

CAN SOMEONE HELP ME PLEASE ASAP!!!!!!

Answer 1

12 in.

Explanation:

Formula: a^2 + b^2 = c^2

This case: c^2 - a^2 = b^2

1) 15^2 + 9^2 = b^2

2) 225 - 81 = 144

3)
`\sqrt{144` = 12