Question

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

Answer 1

12

Explanation:

Using the Pythagorean theorem, we can use
`c^(2)-a^(2)` to find b. 169-25 equals 144.
`√(144)` equzls 12.

Answer 2

12

Explanation:

a² + b² = c²

5² + b² = 13²

25 + b² = 169

b² = 144

b = 12

Answer: 12