A boy walks 9 km north, then 40 km east. What is the shortest distance from the starting point?
Q1. A boy walks 9 km north, then 40 km east. What is the shortest distance from the starting point?
Answer: 41 km
Explanation: Apply Pythagoras theorem: √(9² + 40²) = √(81 + 1600) = √1681 = 41 km.