Skip to main contentSkip to solution

A hemisphere of radius 4 cm is cut from a solid sphere of radius 4 cm. What is the remaining volume of the sphere? (Use π≈3.14\pi \approx 3.14)

Solution

✅ Correct Option: 2

A hemisphere of the same radius is exactly half the sphere, so the remaining solid is the other half.

Sphere volume =43πr3=43π(4)3=256π3= \frac{4}{3}\pi r^3 = \frac{4}{3}\pi(4)^3 = \frac{256\pi}{3}.

Remaining =128π3≈134= \frac{128\pi}{3} \approx 134 cm³.

Note: With π=3.14\pi = 3.14 the value is about 133.97133.97 cm³; option 2 corresponds to π=22/7\pi = 22/7, and we have taken it as the intended answer.

Keyboard Shortcuts

  • Left arrow: Previous question
  • Right arrow: Next question
  • S key: Jump to solution
  • Q key: Jump to question