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A ladder leans against a wall four feet above the ground. The base of the ladder is three feet from the wall. How long is the ladder?
14 years ago

Answers

Ms. Sue
Use the Pythagorean theorem:

a^2 + b^2 = c^2

4^2 + 3^2 = c^2
16 + 9 = c^2
25 = c^2
5 = c

14 years ago

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