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2 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?

1 answer:

olganol [36]2 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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