A person travels 12 km east, then 5 km north. What is the straight-line distance from the starting point?
Q1. A person travels 12 km east, then 5 km north. What is the straight-line distance from the starting point?
Answer: 13 km
Explanation: Using Pythagoras' theorem, the distance = √(12² + 5²) = √(144 + 25) = √169 = 13 km.