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.
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Precalculus 2e · §5.1 Angles · Exercise 68
Stuck? A gentle nudge
No hints for this one.
Your working
Check your full solution
Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.