2013 · Q69
The volume of the material of a hemispherical shell with outer and inner radii 9 cm and 7 cm respectively is approximately
Elementary MathematicsMensuration
- A808 cu cm
- B800 cu cm
- C816 cu cm
- D824 cu cm
Explanation
(2/3)π(729−343)≈808. Verified via ssbcrackexams (inner radius 7 cm). Answer A.