A sphere is inscribed inside a cube. The volume of the cube is 1728 cm3. What is the total surface area of the sphere?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 144π cm2
Volume of cube = side³
side3 = 1728
side = 12
Radius of sphere = side / 2 = 6
Surface area of sphere = 4 × π × r2
Surface area = 4 × π × 62
Surface area = 4 × π × 36
Surface area = 144π