Question 11
The volume of a cube is 64 cm3. Its surface area is
(a) 16 cm2 (b) 64 cm2
(c) 96 cm2 (d) 128 cm2
Let the side of the cube be a. Then,
Volume of cube a3=64
⇒a=4 [given]
Now, surface area of the cube=6a2=6×42=96 cm2