A person travels 10 km to the north, then 6 km to the east, and finally 2 km to the south. What is the straight-line distance between his final position and the starting point?
Show answer & explanation
Correct answer: B
Explanation
In the north direction = 10 − 2 = 8 km
In the east direction = 6 km
Now, the straight-line distance
√(8² + 6²) = √(64 + 36) = √100 = 10
Correct answer: (2) 10 km