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

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

User Shantrese
by
7.4k points

1 Answer

2 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 :>

User Tkosinski
by
7.7k points
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