Question

Find the length of side a.
O A. 2
O B. 3
O c. 9
OD. 134
SUBMIT

Answer 1

Answer B is correct.

Explanation:

a² + b² = c² |-b²

a² = c² - b²

a² = 5² - 4²

a² = 25 - 16

a² = 9

a = 3