You are going to use an incline plane to lift a heavy object to the top of a shelving unit with a height of 7 ft. The base of the incline plane is 16 ft from the shelving unit. What is the length of the incline plane? An incline plane forms a right triangle. The height of the incline plane is 7 feet and the base is 16 feet. 7 ft 16 ft (This figure is not drawn to scale.) The length of the incline plane is about a nothing ft. (Round to the nearest tenth as needed.)