Question

Find the volume of given figure.

• A. $385$ c$m^3$
• B. $268.98$ c$m^3$
• C. $271.98$ c$m^3$
• D. $359$ c$m^3$

Answer 1

The correct option is B $268.98$ c$m^3$

Diameter of hemisphere$=5cm$

Diameter of small hemisphere$=1.5cm$

Volume of the solid=

$V=\frac{2}{3}\pi R^3+\frac{2}{3}\pi r^3$

$V=\frac{2}{3}\times \frac{22}{7}\times 5^3+\frac{2}{3}\times \frac{22}{7}\times {1.5}^3$

$V=261.9+7.07=268.97c{m}^3$

Answer $268.97c{m}^3$