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Find the circumference of a circle with diameter 9mm
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Find the circumference of a circle with diameter 9mm

User Jane Sales
by
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1 Answer

5 votes
C = 2pi *r
r= d/2

C= 2pi *4.5

C= 2*3.1412*4.5

C= 28.27
User Edvard Rejthar
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