Find the area of a circle of radius 30 cm.

Area of a circle
=pi r2
=22/7*30*30
=19800/7
=2828.57143
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Area of circle = pie r square
=22/7 x 30 x 30
= 2828.5714286
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2828.57143
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area of circle = pie r square
=3.14x30x30
=2826
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2828.57143
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sasd
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The above answers are correct. 
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Area of circle= πr2 22/7×30×30 =2828.5714285714
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Area of circle = pi r?r. Radius (r)=30. 3.14?30?30=2826
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