1.

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)`


Discussion

No Comment Found

Related InterviewSolutions