OpenStax, Precalculus 2e §5.1 Angles · Exercise 68 · Algebra · Functions
Angles · Exercise 68
Two cities have the same longitude. The latitude of city A is 9 degrees north and the latitude of city B is 30 degree north. Assume the radius of the earth is 3960 miles. Find the distance between the two cities.
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OpenStax, Precalculus 2e · §5.1 Angles · Exercise 68
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