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The largest cone is curved out from one face of solid cube of side 21 cm find the volume of the remaining solid.

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The largest cone is curved out from one face of solid cube of side 21 cm find the volume of the remaining solid.
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Volume of cube=`a^3=21^3cm^3`
Volume of cone=`1/3*22/7*21/2*21/2*21`
`=441*11/2cm^3`
`V=21*21*21-441*11/2`
`=6835.5cm^3`.
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