the volume of a cube is 729 cm cube find its surface area
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Answered by
42
Heya!!
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Let edge of cube be x.
Since volume of cube = x^3
=) x^3 = 729 cm^3
=) x^3 = (9 cm) ^3
=) x = 9 cm.
Since Total surface area of cube = 6* x^2
= 6* 9cm * 9cm
= 6 * 81 cm^2
= 486 cm^2
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Hope it helps u :)
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Let edge of cube be x.
Since volume of cube = x^3
=) x^3 = 729 cm^3
=) x^3 = (9 cm) ^3
=) x = 9 cm.
Since Total surface area of cube = 6* x^2
= 6* 9cm * 9cm
= 6 * 81 cm^2
= 486 cm^2
---------------------------------
Hope it helps u :)
Answered by
8
a^3=729
a=cube √729=9
surface area=4a^2=4×9×9=324
hope it will help u
a=cube √729=9
surface area=4a^2=4×9×9=324
hope it will help u
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