Calculate the perimeter of a sector of a circle of raduis...
Calculate the perimeter of a sector of a circle of raduis 12cm and angle 60o.
(12 + 4π)cm
(24 + 4π)cm
(12 + 6π)cm
(24 + 6π)cm
Correct answer is B
Perimeter = 2r + θ360 x 2πr
= 2(12) + 60360 x 2 x π x 12
= (24 + 4π)cm