SOLUTION: a 15 ft ladder leans against a building. the bottom of the ladder is 7ft. from the building. how high is the top of the ladder? round to 2 decimal places

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Question 49046: a 15 ft ladder leans against a building. the bottom of the ladder is 7ft. from the building. how high is the top of the ladder? round to 2 decimal places
Answer by Nate(3500) About Me  (Show Source):
You can put this solution on YOUR website!
This makes a triangular shape.
Hypotenuse = 15
Leg = 7
Leg = b
a%5E2+%2B+b%5E2+=+c%5E2
7%5E2+%2B+b%5E2+=+15%5E2
49+%2B+b%5E2+=+225
b%5E2+=+176
b+=+sqrt%28176%29
About 13.2665 ft