Question

If a hemi-spherical dome has an inner diameter of 28 m, then its volume (in $m^3$) is

• A. $6186.60$
• B. $5749.33$
• C. $7099.33$
• D. $7459.33$

Answer 1

Answer: (B)

$5749.33$

Radius of the hemi-spherical dome $=\frac{28}{2}=14m$

Volume of a hemisphere of radius 'r' $=\frac{2}{3}\pi r^3=\frac{2}{3}\times \frac{22}{7}\times 14\times 12\times 12=5749.33{cm}^3$