find the volume of a cube ,one face of which has an area of 81m^2
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Answered by
6
Area of one face of cube = 81 m^2
Edge of cube = sqrt 81
Edge = 9 m
Volume = Edge ^3
= 9*9*9
= 81 * 9
= 729 m^2
Edge of cube = sqrt 81
Edge = 9 m
Volume = Edge ^3
= 9*9*9
= 81 * 9
= 729 m^2
Answered by
6
hii!!
here's ur answer...
area of one face of the cube is 81m²
as we know all the faces of a cube are square.
therefore side² = 81m²
→ side = √81
→ side = 9m
hence edge(side) of the cube is 9m.
volume of the cube = side³
= 9×9×9
= 81×9
= 729m³
hope this helps..!
here's ur answer...
area of one face of the cube is 81m²
as we know all the faces of a cube are square.
therefore side² = 81m²
→ side = √81
→ side = 9m
hence edge(side) of the cube is 9m.
volume of the cube = side³
= 9×9×9
= 81×9
= 729m³
hope this helps..!
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