Question

the surface area of a cube is 216 sq.meter.find it's volume.

Answer 1

Let the length of side of the cube be x.
6x^2=216
=>x^2=36
=>x=6
volume of cube = x^3=216m^3
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Answer 2

Surface area of cube = 216 sq m
Let the side of the cube be a
Surface area = 6a²
6a² = 216
a² = 36
a = 6 m

Volume = a³ = 6 x 6 x 6 = 216 m³