2014 · Q74
A cylinder is surmounted by a cone at one end, a hemisphere at the other end. The common radius is 3.5 cm, the height of the cylinder is 6.5 cm and the total height of the structure is 12.8 cm. The volume V of the structure lies between
Elementary MathematicsMensuration
- A370 cm^3 and 380 cm^3
- B380 cm^3 and 390 cm^3
- C390 cm^3 and 400 cm^3
- DNone of the above
Explanation
Cone height = 12.8 - 6.5 - 3.5 = 2.8 cm; total volume ≈ 376 cm^3.