SOLUTION: The base of a 15-ft ladder is 8 feet away from the wall. How far above the floor is the top of the ladder? Give answer to the nearest thousandth.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: The base of a 15-ft ladder is 8 feet away from the wall. How far above the floor is the top of the ladder? Give answer to the nearest thousandth.       Log On


   

Question 172406: The base of a 15-ft ladder is 8 feet away from the wall. How far above the floor is the top of the ladder? Give answer to the nearest thousandth.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
The base of a 15-ft ladder is 8 feet away from the wall. How far above the floor is the top of the ladder? Give answer to the nearest thousandth.
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Assuming the wall doesn't lean, it's a right triangle.
The ladder is the hypotenuse.
x%5E2+=+15%5E2+-+8%5E2
x%5E2+=+161
x =~ 12.689 feet