A person travels 8 km west, then 5 km north, then 3 km east. What is the shortest distance from the starting point?
Q1. A person travels 8 km west, then 5 km north, then 3 km east. What is the shortest distance from the starting point?
Answer: √(5² + 5²) km
Explanation: Net displacement west is 8 - 3 = 5 km, and north is 5 km, so use Pythagoras' theorem: √(5² + 5²).