A girl walks 4 km towards the west, then turns left and walks 3 km. How far is she from her initial position?
Q1. A girl walks 4 km towards the west, then turns left and walks 3 km. How far is she from her initial position?
Answer: 5 km
Explanation: Use Pythagoras' theorem: √(4² + 3²) = √(16 + 9) = √25 = 5 km.