Question

Find the area of a circular sector subtending an angle ${120}^{\circ }$ at the centre if the area of the whole circle is 36 $c{m}^2$.

• A. $6c{m}^2$
• B. $12c{m}^2$
• C. $18c{m}^2$
• D. $24c{m}^2$

Answer 1

The correct option is B $12c{m}^2$

$Areaofsector=\frac{\theta }{360}\times Areaofthecircle$
$Area=\frac{120}{360}\times 36=12c{m}^2$