OpenStax, Algebra and Trigonometry 2e §7.1 Angles · Example 8 · Trigonometry · Angle measure
Finding the Length of an Arc
Assume the orbit of Mercury around the sun is a perfect circle. Mercury is approximately 36 million miles from the sun.
ⓐ In one Earth day, Mercury completes 0.0114 of its total revolution. How many miles does it travel in one day?
ⓑ Use your answer from part (a) to determine the radian measure for Mercury’s movement in one Earth day.
OpenStax, Algebra and Trigonometry 2e · §7.1 Angles · Example 8
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