If the volume of the cube is 729 cm3, then the surface area of the cube will be
A) 486 sq.cm
B) 456 sq.cm
C) 446 sq.cm
D) 476 sq.cm
Answers
Answered by
1
Volume of cube=(side)³
729=side³
side=9
Surface area of cube= 6×side²
=6×9×9
=6×81
=486sq cm
Ans is option A.
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729=side³
side=9
Surface area of cube= 6×side²
=6×9×9
=6×81
=486sq cm
Ans is option A.
hope it helps u
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Answered by
0
Volume of cube =a^2=729
Therefor a=9
So
Surface Area =6a^2
(6x9x9)=486 sq cm
Therefor a=9
So
Surface Area =6a^2
(6x9x9)=486 sq cm
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