Question

If a sector of a circle with radius $10cm$ has central angle ${18}^{\circ }$. Find the area of the sector.

Answer 1

Area of the sector $=\frac{\theta }{360}\times \pi r^2$
$\therefore$ Area of the sector $=\frac{18}{360}\times 3.14\times {10}^2$
$=15.7c{m}^2$
$\therefore$ The area of the sector $=15.7c{m}^2$