An arc of circle of radius 2cm subtends an angle of 60o at the centre. Find the area of the sector
-
A.
(frac{2 pi}{3})cm2 -
B.
(frac{pi}{2})cm2 -
C.
(frac{pi}{3})cm2 -
D.
(pi)cm2
Correct Answer: Option A
Explanation
Area of a sector (frac{theta}{360}) x 2(pi)r
= (frac{60^o}{360^o}) x 2(pi)r
= (frac{2 pi}{3})cm2