A ladder is placed 3 m away from a wall, and the wall is 4 m high. What is the length of the ladder?
- 5 m
- 6 m
- 7 m
- None of these
Explanation
The wall = 4 m high
Distance from wall = 3 m
Ladder = hypotenuse
Use Pythagoras theorem:
c² = a² + b²
c² = 3² + 4²
c² = 9 + 16
c² = 25
c = √25 = 5
Last verified on 28-07-2026
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