Question

Solve the Pythagorean theorem for a, assuming a, b, and c are positive.

Answer 1

`{a}^(2) + {b}^(2) = {c}^(2)`

`{a}^(2) = {c}^(2) - {b}^(2)`

`a = \sqrt{ {c}^(2) - {b}^(2) }`

The correct answer is D.