A radio tower is supported by two wires that are each 130 yards long and attached to the ground 50 yards from the base of the tower. How tall is the tower?

Two ships left Port Hope on Lake Ontario at the same time. One travelled at 12 km/h on a course of 235 degrees. The other travelled at 15 km/h on a course of 105 degrees. How far apart were the ships after four hours to the nearest kilometre?

Two people across the street from each put a hook below a window facing the street so that a banner can be hung from the hooks. One of the hooksis 104 ft east and 20 ft. north from the street corner. It is hung a heigth of 32 ft. The other hook is ft. 4 ft. west and 22 ft. north from the same street corner. It is hung at a heigth of 35 ft. What is the distance between the hooks? Round your answer to the nearest foot