Question

Can anyone help me in this pls

Answer 1

a = √(c² - b²)

Explanation:

Pythagoras Theorem:

c² = a² + b²

c = √(a² + b²)

Rearranging this to get a on its own

a² = c² - b²

a = √(c² - b²)

Answer 2

the correct answer is a=√c² + ✓b²