4. The Torrid Zone on Earth is the area between the Tropic of Cancer and the Tropic of
Capricom (lines of latitude close to the equator). The distance between these two
tropics is about 3250 miles. You can estimate the distance as the height of a cylindrical
belt around the earth at the equator.
Part A: If the radius of the Earth is 3960 miles, then estimate the amount of surface area of
the Torrid Zone (cylinder shape). Approximate to the nearest thousands place.