A person walks 8 km north, then 6 km west. What is the shortest distance to return to the starting point?
Q1. A person walks 8 km north, then 6 km west. What is the shortest distance to return to the starting point?
Answer: 10 km
Explanation: Using Pythagoras' theorem: √(8² + 6²) = √(64 + 36) = √100 = 10 km.