Find the area sector of circle whose radius r and length of arc is l
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length of arc = ¤/360 *2pie r
so, l = ¤/360 *2 pie r
¤/360=l/2 pie r
area of sector = ¤/ 360 pie r^2
put value of ¤/360
area = l/2pie r * pie r^2
= l/2 * r
= lr/2
hope it helps you.....
so, l = ¤/360 *2 pie r
¤/360=l/2 pie r
area of sector = ¤/ 360 pie r^2
put value of ¤/360
area = l/2pie r * pie r^2
= l/2 * r
= lr/2
hope it helps you.....
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