Correct Answer - Option 2 : 12
Given:
Diameter of cylinder = 32cm
Height of cylinder = 9cm
Formula:
Volume of cylinder = πr2h
Volume of sphere = 4/3 × πr3
Calculation:
Radius of cylinder = 32/2 = 16cm
Volume of cylinder = 22/7 × 162 × 9 = 2304π cm3
Volume of sphere = 2304π cm3
Then,
⇒ 2304π = 4/3 × πr3
⇒ r = 12
∴ Radius of sphere is 12cm.