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# CBSE Class 9 Answered

the diameter of moon is approximately one-fourth of the diameter of the earth.what fraction of the volume of the earth is the volume of the moon?
Asked by rajeshporwal02 | 07 Jan, 2023, 07:38: PM
Let us assume earth and moon are spherical in shape.

Let r be radius and d be diameter of sphere

Volume of sphere V = (4/3)r3 = (4/3)(d/2)3 = (1/6)d3

Volume is proportional to cube of diameter.

Let VE be volume of earth and dE is its diameter.

Let VM be volume of moon and dM is its diameter.

dM = (1/4) dE   ( given )

Hence , Volume of moon is (1/64)th of volume of earth.

Answered by Thiyagarajan K | 07 Jan, 2023, 08:12: PM

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