The diameter of the moon is approximately one fourth of the diameter o

1.	The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.
Answer» Surface area of a shephe = 4πr² Ratio of surface areas of spheres = square of ratio of their radius Given, Diameter of the moon is approximately one fourth of the diameter of the earth ∴ r_m = 1/4 × r_e ⇒ r_m : r_e = 1 : 4 Ratio of their surface area = 1 : 16

The diameter of the moon is approximately one fourth of the diameter of the earth. Find the ratio of their surface areas.

Answer»

Surface area of a shephe = 4πr²

Ratio of surface areas of spheres = square of ratio of their radius

Given,

Diameter of the moon is approximately one fourth of the diameter of the earth

∴ r_m = 1/4 × r_e

⇒ r_m : r_e = 1 : 4

Ratio of their surface area = 1 : 16