Question

The distance from around the Earth along a given latitude can be found using the formula

C= 2pi r cos L
, where r is the radius of the Earth and L is the latitude. The radius of Earth is approximately 3960 miles. Describe the distances along the latitudes as you go from
0
at the equator to
90
at the poles.

Answer 1

See below

Explanation:

The distances will decrease gradually from 3960 at the equator to 0 at the poles.

Because at the equator the cosine of L ranges from cos 0 = 1 at the equator and steadily decreases to cos 90 = 0 at the poles.