Question

Type III.
1. Volume of a cube is 729 cubic metres. Find the length of a side of the cube​

Answer 1

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Using the formula

$V=a^3$

Solving for a

$a=V^1/3\:=729^1/3\:≈\:9m$

Answer 2

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let the side of a cube=a

volume of a cube=l*b*h

or,729=a*a*a

or,729=a³

or,∛729=a

or,9=a

the length of a side of the cube​=9