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3 years ago

13

A firefighter places a 29 feet ladder, so that the base of the ladder is 21 feet from the wall. What is the height at which the

top of the ladder touches the wall?

1 answer:

Tju [1.3M]3 years ago

6 0

Pythagorean theorem:
a^2+b^2=c^2 (C^2 always is the hypotenuse)

21^2+b^2=29^2
441+b^2=841
841-441=400
square root of 400 is 20
Your answer is 20

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