If the diameter of the earth is four times the diameter of the moon then the ratio of their surface area is
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FabFam1
Ratio of radius of the earth and the moon is 4:1. Surface area of a sphere = 4πr² Therefore, Ratio of surface areas of earth and moon = 4²:1² = 16:1
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Surface area of a sphere = 4πr²
Therefore,
Ratio of surface areas of earth and moon = 4²:1² = 16:1