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A solid cube of side 12 …

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A solid cube of side 12 cm is cut into eight cubes of equal volume.What will be the side of the new cube? Also,find the ratio between their surface areas.

Posted by Vishu Bastara 3 years, 11 months ago

CBSE > Class 09 > Mathematics

1 answers

Ishika Sharma 3 years, 11 months ago

Volume of the bigger cube= (A)3=(12)3=1728cm3(cube) Volume of small cube = 1728/8= 216cm3 Volume of small cube =a3 = 217cm3 3√216cm3 = a3 3√6×6×6=a A=6 Ratio =SA of big cube /SA of small cube 6A2/6a2 = 12×12/6×= 4/1 So the ratio will be 4:1

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