Giant kelp is a seaweed that typically grows about 100 ft in height, but may reach
as high as 175 ft.
a. A diver positions herself 10 ft from the base of a giant kelp so that her eye
level is 5 ft above the ocean floor. If the kelp is 100 ft in height, what would
be the angle of elevation from the diver to the top of the kelp? Round to the
nearest tenth of a degree.
b. The angle of elevation from the diver's eye level to the top of a giant kelp whose
base is 30 ft away is 75.5°. To the nearest foot, what is the height of the kelp?