SOLUTION: The base of a 16ft ladder is 4ft from a wall. How high on the wall does the ladder reach?

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Question 335980: The base of a 16ft ladder is 4ft from a wall. How high on the wall does the ladder reach?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
You have a right triangle.
a^2+b^2=c^2
4^2+b^2=256
16+b^2=256
b^2=256-16
b^2=240
b=sqrt240
b=15.49 ft. ans. for the height of the ladder up the wall.