If $\theta$ is the angle (in degrees) of a sector of a circle of radius $r$, then area of the sector is
If $\theta$ is the angle (in degrees) of a sector of a circle of radius $r$, then area of the sector is
- A
$\frac{\pi r^{2} \theta}{180}$
- B
$\frac{\pi r^{2} \theta}{360}$
- C
$\frac{2 \pi r \theta}{360}$
- D
$\frac{2 \pi r \theta}{180}$
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