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The diameter of the Moon is about one-fourth the diameter of the Earth.
Treating both as spheres, find the ratio of the surface area of the Moon to that of the Earth.

Class 9Surface Area of a SphereMensuration
  • A1 : 16
  • B1 : 4
  • C1 : 8
  • D1 : 64

Step-by-Step Solution

Surface area is proportional to . Ratio = .
Answer: A) 1 : 16

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