The whole surface area of a cube is 294 cm2. The volume of the cube is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 343 cm3.
Let each side of the cube = a cm
6a2 = 294
⇒ a2 = 294/6 = 49
⇒ a = 7 cm
Volume of cube = 73 = 343 cm3