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Question

A sector of a circle with a radius '18cm' has a central angle '120°'. Find the area of the sector. Use π=3.14


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Solution

Area of the sector:

Given: Radius(r)=18cm

Central angle(θ)=120° and π=3.14

Area of sector of circle=θ360°×πr2

=120°360°×3.14×18×18

=13×3.14×18×18

=3.14×108

=339.12cm2

Therefore, the area of the sector is 339.12cm2


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