SOLUTION: a 20 foot ladder leaning against the building reches a point 16 feet above the ground. how far is the foot of the ladder from the foot of the building?

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Question 655885: a 20 foot ladder leaning against the building reches a point 16 feet above the ground. how far is the foot of the ladder from the foot of the building?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
a^2+b^2=c^2
16^2+b^2=20^2
256+b^2=400
b^2=400-256
b^2=144
sqrt b^2=12ft