Question

Find the area of sector of the circle of radius 5 cm , if the corresponding arc length is 3.5 cm .

Answer 1

Radius, r = 5 cm
Arc length, l = 3.5 cm
$\mathrm{Area}=\frac{1}{2}lr$
$\Rightarrow A=\frac{1}{2}\left(3.5\right)\left(5\right)=8.75{\mathrm{cm}}^2$