Question

Peter leaves his house and walks 15 meters south, then turns east and walks another 15 meters. How far is he from his house? Round your answer to the nearest tenth

Answer 1

Use the Pythagorean Theorem.

a^2 + b^2 = c^2

Answer 2

15^2 + 15^2 = c^2
450 = c^2
square root 450 = 21.2