Question

Find the length of the side not given when c is the hypotenuse and a and b are the legs. a = 9 and c= 13

Answer 1

b = 2√22 ≈ 9.381

Explanation:

The Pythagorean theorem tells you ...

a^2 + b^2 = c^2

Filling in the given numbers, we can solve for b.

9^2 +b^2 = 13^2

b^2 = 169 -81 = 88

b = 2√22 . . . . . . . . take the square root and simplify