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

Grimthorr asked Nov 18, 2023

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Grimthorr asked Nov 18, 2023

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12 votes

EXPLAINATION:
$\pi r^2=(22)/(7) .21^2=(22)/(7) .441=(22.441)/(7) =(22.63.7)/(7) =22.63=1386<cm^2>$

ANSWER: 1386
cm^2

Ok done. Thank to me :>

Lbergnehr answered Nov 23, 2023

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