The inequality represents the spine thickness, in centimeters, of various books on a
1 answer:
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To do this, we have to multiply the 7 feet diameter by pi to get the circumference because the formula for circumference is 
, or circumference = pi times diameter. 7 x 3.14 (pi rounded) = 21.98
Answer: 21.98 feet
Answer: 21.98 feet