Question

If the circumference of the inner edge of a hemispherical bowl is $\frac{132}{7}cm$, then what is the capacity?

• A. $12\pi c{m}^3$
• B. $18\pi c{m}^3$
• C. $24\pi c{m}^3$
• D. $36\pi c{m}^3$

Answer 1

The correct option is B $18\pi c{m}^3$

$2\pi r=\frac{132}{7}⟹r=3$
$\therefore$ Capacity $=\frac{2}{3}\pi r^3=18\pi$