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How do you find the circumference and the area ​

How do you find the circumference and the area ​-example-1
User Michael Albinus
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1 Answer

19 votes
19 votes
To find the circumference you do 2x3.14 times radius and for the area you do 3.14 times the radius^2 area for a would be 78.5mm and circumference would be 31.4mm and for b the area is 113.04in and circumference is 37.68
User Adam Luchjenbroers
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