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Mathematics

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The perimeter of a circle=πr², where π=22/7. find the area of r=21cm

Answer :

Silirobert15go Silirobert15go

EXPLAINATION: [tex]\pi r^2=\frac{22}{7} .21^2=\frac{22}{7} .441=\frac{22.441}{7} =\frac{22.63.7}{7} =22.63=1386<cm^2>[/tex]

ANSWER: 1386 [tex]cm^2[/tex]

Ok done. Thank to me :>

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