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NeX [460]
3 years ago
13

A 25 foot ladder rests against a buliding . The base lf the ladder is 15 feet away from the base of the building. At what height

does the ladder rest on the building (geometry , pythagorean theorem)
Mathematics
1 answer:
professor190 [17]3 years ago
3 0
X^2+15^2=25^2
X^2+225=625
Isolate X
X^2=400
Take the square root on both sides
X=positive and negative 20 but in this case the negative is thrown out because you can't have a negative side
Answer: 20
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