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Find the area of the sector of a circle of angle `120^(@)`, if the radius of the circle is 21 cm. |
Answer» The area of the sector =`(theta)/(360)(pir^(2))` Here, `theta=120^(@) and r=21 cm` `=(120^(@))/(360^(@))xx(22)/(7)xx21xx21=462cm^(2)` |
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