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29 votes
29 votes
A circular puzzle is 20 inches in diameter. All of the pieces are about the same size. Find the circumference.

User DCShannon
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1 Answer

24 votes
24 votes

analyze problem

perfect circle with diameter of 20

so, radius is 10

circle circumference=10*pi*r

31.4*2

62.8

User Guido Dizioli
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