Q23 of 45 Page 12

In a circle of radius 21cm, an arc subtends an angle of 60° at the centre. Find (i)the length of the arc (ii)area of the sector formed by the arc(CBSE 2013)


Given,


Radius of circle = 21cm


Angle subtend by arc = 60°



Length of the arc =


Area of sector formed by arc =



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