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Arithmetic Ability
Volume and Surface Area
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Q.
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
View Answer
Correct choice: A
Explanation:
volume = a3 = 729; => a = 9 surface area= 6a3 = (6 x 9 x 9) = 486 sq.cm
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