Correct Answer - Option 3 : 16 π
Concept:
The surface area of a sphere = 4 × π × r2 (∵ r = Radius of the sphere)
The area of square = (Side)2
Calculation:
Let be assume the side of the square is x and the radius of the sphere is r.
⇒ x2 = 16, x = 4 cm
⇒ The radius of square = 4 × (50/100) = 2 cm
⇒ The surface area of square = 4 × (π) × 22 = 16 π
∴ The required result will be 16 π.