Question

The diameter of the earth is about 7900 miles. The diameter of Jupiter is about 88,800 miles, approximately 11 times that of the earth. How would the surface area of Jupiter compare to the surface area of the earth ?

Answer 1

C. About 121 times that of the earth

Explanation:

Surface area is measured in square units. The surface area of Jupiter is about 112 or 121 times that of the earth.

Answer 2

We know that the surface of a sphere is: S = 4 * pi * r^2 The surface of Earth is : Se = 4 * 3.1416 * (7900/2)^2 = 196,066,797.51 And the Jupiter is : Sj = 4 * 3.1416 * (88800/2)^2 = 24,772,840,374.32 So the surface of Jupiter is around 11^2 times bigger than the Earth