Find the volume of a cube, one face of which has an area of 81m×m
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Answer:
Given, Area of one face of a cube is 81m²
Faces of a cube are in the shape of square.
We know that,
Area of square = ( side)²
Now, Given Area = 81m²
Side = √Area
= √81
= 9m .
Now,
We know that, Volume of cube = ( side)³
Volume
= ( Side) ³
=9³
=729m³
Therefore, Volume of cube whose one face area equals 81m² is 729m³
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