An arc of circle of radius 2cm subtends an angle of 60º at the centre. Find the area of the sector
-
\(\frac{2 \pi}{3}\)cm2
- \(\frac{\pi}{2}\)cm2
- \(\frac{\pi}{3}\)cm2
- \(\pi\)cm2
The correct answer is: A
Explanation
Area of a sector \(\frac{\theta}{360}\) x \(\pi\)r\(^2\)
= \(\frac{60^o}{360^o}\) x \(\pi\)2\(^2\)
= \(\frac{2 \pi}{3}\)cm2