Bob is driving along a straight and level road straight toward a mountain. At some point on his trip he measures the angle of elevation to the top of the mountain and finds it to be 21°44'. Find the height of the mountain to the nearest foot if Bob is 13,428.7 feet from the center of the mountain at the base.
The distance Bob has driven and the height of the mountain form a right angle triangle, where the driven distance is the hypotenuse and the height of the mountain is the height.
sin∅ = height / hypotenuse
hypotenuse = 13,428.7 / sin(21.73°)
Distance driven = 36,270.9 feet