1.

The volume of a cube will be ………………… (in cm3), whose total surface area is 216 cm2.(A) 216 (B) 196 (C) 212 (D) 144

Answer»

Correct option is: (A) 216

Let side of the cube be a.

Given that total surface area of cube is 216 \(cm^2\)

\(\therefore\) \(6\, a^2 = 216\) 

\(a^2 = \frac {216}6 = 36 = 6^2\)

\(\therefore\) a = 6 cm

Now, the volume of cube = \(a^3=6^3=216\,cm^3.\)

Correct option is: (A) 216



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