Example 2

A trucker drives 1,027 feet up a hill that has a constant slope. When the trucker reaches the top of the hill, he has traveled a horizontal distance of 990 feet. At what angle did the trucker drive to reach the top? Round your answer to the nearest degree.
  1. Determine which trigonometric function to use by identifying the given information.
  2. Use a calculator to calculate the value of .
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