Radius of a sector of a circle is 3.5 cm and length of its arc is 2.2 cm. Find the area of the sector.


Given radius of sector of a circle , r = 3.5cm
Length of the arc, l = 2.2cm
Area of sector ,A = lr/2
A = 2.2×3.5/2 = 3.85cm2
Hence the area of the sector is 3.85cm2

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