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Find the volume of a cube whose side is 7cm.

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Given: Side of a cube is `(a)=7 cm`.
Volume of a cube is given by:
`V=a^3`
`V=(7cm)^3`
`V=7cmtimes7cmtimes7cm`
`V=343cm^3`
Hence, the volume of a cube is `343 cm^3`.
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