The total surface area of a cube is 216 cm2 then its volume is

(a) 216

(b) 144

(c) 196

(d) 212

Solution:

Given TSA of cube = 216 cm3

=> 6a2 = 216

=> a2 = 216/6 = 36

=> a = 6

Volume of a cube = a3

= 63

= 216 cm3

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