The area of sector of a circle of radius 36 cm is 72p cm2 The length of the corresponding arc of the...........

Quantitative Aptitude (CDS) Mensuration 2D

The area of sector of a circle of radius 36 cm is 72p cm². The length of the corresponding arc of the sector is

$\pi cm$

$2\pi cm$

$3 \pi cm$

$4 \pi cm$

Area of sector = 72 $\pi cm^{2}$

$=> \frac{\pi r^{2}\Theta }{360^{o}} = 72\pi$

$\Theta =\: 20^{o}$

$Length\: of Arc =(\: \pi r \Theta )/180^{o}$

$=\frac{\pi *36*20}{180}= 4\pi cm$

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