A person walks 5 km west, then 12 km south. What is the shortest distance from the initial to the final position?
Q1. A person walks 5 km west, then 12 km south. What is the shortest distance from the initial to the final position?
Answer: 13 km
Explanation: Apply Pythagoras theorem: √(5² + 12²) = √(25 + 144) = √169 = 13 km.