Dennis needs to fix a leaky roof on his house but does not own a ladder. He
thinks that a 25 ft. ladder will be long enough to reach the roof, but he needs
to be sure before he spends the money to buy one. He chooses a point P on the
ground where he can visually align the roof of his car with the edge of the
house roof. Help Dennis determine if a 25 ft. ladder will be long enough for him
to safely reach his roof.