A person travels 80 km north and 60 km west. How far is he from starting point?
- 120 km
- 100 km
- 140 km
- 80 km
Explanation
This is a distance problem using the Pythagorean theorem.
A person moves:
- 80 km North
- 60 km West
These form a right triangle.
Distance from starting point:
d= √(80^2 + 60^2)
=√(6400 + 3600)
= √(10000)
= 100 km
Last updated question by NS on 2 MAY 2026
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