Jambmaths question:
Calculate the perimeter of a sector of a circle of radius 12cm and angle 60o
Option A:
(12+4π)cm
Option B:
(24+4π)cm
Option C:
(12+6π)cm
Option D:
(24+4π)cm
Jamb Maths Solution:
$\begin{align} & P=2r+\frac{\theta }{360}\times 2\pi r \\ & P=2(12)+\frac{{{60}^{\circ }}}{{{360}^{\circ }}}\times 2\pi (12) \\ & P=(24+4\pi )cm \\\end{align}$
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