Use the Pythagorean Theorem.
12^2 + b^2 = 39^2
The firemen's ladder is 39 feet long (L).
The firemen set the base of the ladder 12 feet away from the building (d).
When the firemen lean the ladder against the building, the top of the ladder reaches the third floor window.
How high, in feet, is the third floor window from the ground (h)?
Round your answer to the nearest tenth (if necessary).
Do not include units (feet) in your answer.
1 answer