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Question

Determine the ratio of the lateral surface area to total surface area of a cube.


A

32

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B

23

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C

1

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D

49

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Solution

The correct option is B

23


We know, LSA of a cube of side 'a'=4a2
And, TSA of a cube of side 'a'=6a2

Hence, the required ratio = 4×a26×a2 = 46 = 23


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