Asked by anonymous
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?
Answers
Answered by
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
a^2 + b^2 = c^2
4^2 + 3^2 = c^2
16 + 9 = c^2
25 = c^2
5 = c
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