A cyclist travels 15 km west, then 8 km south. What is the shortest distance to the starting point?
Q1. A cyclist travels 15 km west, then 8 km south. What is the shortest distance to the starting point?
Answer: √(15² + 8²) km
Explanation: Use Pythagoras' theorem: √(15² + 8²) = √(225 + 64) = √289 km.