Lemma
DeepAngle measure
OpenStax, Algebra and Trigonometry 2e §7.1 Angles · Exercise 69 · Trigonometry · Angle measure

Angles · Exercise 69

A city is located at 40 degrees north latitude. Assume the radius of the earth is 3960 miles and the earth rotates once every 24 hours. Find the linear speed of a person who resides in this city.

~11 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §7.1 Angles · Exercise 69

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
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.