Question

Find the length of the third side. If necessary, round to the nearest tenth.

Answer 1

Answer: 5

Explanation:

use formula a^2 + b^2 = c^2

a^2 + 12^2 = 13^2

a^2 + 144 = 169

- 144 -144

a^2 = 25

sqrt sqrt

a = sqrt (25)

a = 5