Question

Find the length of the third side. If necessary, round to the nearest tenth.
15
13
Pythagorean theorm

Answer 1

Answer:

third side ≈ 19.8

Step-by-step explanation:

using Pyjthagoras' identity in the right triangle.

the square on the hypotenuse x is equal to the sum of the squares on the other 2 sides, that is

x² = 13² + 15² = 169 + 225 = 394 ( take square root of both sides )

x = $\sqrt{394}$ ≈ 19.8 ( to the nearest tenth )