A cargo ramp leads up to the side of a building. The bottom of the ramp is 100 feet from the base of the
building and makes an angle of 4° with the ground. Answer each of the questions and show all your work.
(a) Using the cosine function find AC, the approximate length of the ramp. Round to the nearest tenth of
a foot.
(b) Using the tangent function find BC, the height off the ground where the ramp touches the building.
Round to the nearest foot.