Verified Answer :

olya98

To find the circumference, multiply the diameter by pi.

3.14 x 10 = 31.4 inches

2πr is the formula of circumference so
2 times pi (3.14) is about 6.28 
radius half of the diameter so half of 10 is 5
so 5 times 6.28 is
31.4.

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