Today’s SAT question of the day is a cool math problem about a ladder! Really, it’s kind of fun. The question:
A 25-foot ladder is placed against a vertical wall of a building, with the bottom of the ladder standing on concrete 7 feet from the base of the building. If the top of the ladder slips down 4 feet, then the bottom of the ladder will slide out how many feet?
First, we have to make a sketch of the initial ladder setup: