7. A 15 foot ladder is learning against a house so that it is 7 feet from the ground. What angle does the ladder make with the ground?
8. A plane must begin its descent when it is 80 feet above the ground and 250 feet from the airport. At what angle should his descent be if he wants to fly in a straight line from the point of descent to the ground?
7. arcsin 7/15 = 27.818
8. arccos 8/25 = 57.769