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Leni [432]
3 years ago
8

A ladder is placed against a wall of a building 20m above the ground. The foot of the ladder is 15m away from the bottom of the

building. What is the length of the ladder?
Mathematics
1 answer:
olganol [36]3 years ago
4 0
By the Pythagorean Theorem:

L^2=20^2+15^2

L^2=400+225

L^2=625

L=25 m
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