2. (Opts) A ladder leans against the wall of a building. The length of the ladder is 9 feet
longer than the distance of the bottom of the ladder from the building. The distance
of the top of the ladder reaches up the side of the building is 7 feet longer than the
distance of the bottom of the ladder from the building. Find the lengths of all three
sides of the triangle formed by the ladder leaning against the building.