Raymond B. answered 01/23/24
Tutor
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Math, microeconomics or criminal justice
circumference = pid= pi x diameter= about 3.141593 x 18'
= about 56.5486776 feet
= about 56.55 ft.
sometimes they use just 3.14 as an approximation for pi, then 3.14(18)=56.52
but 56.55 is more accurate, for 2 decimal places