Mathematics
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what is the exact circumference of a circle with an area of 144 times pi square feet

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(1) Answers
Genna57

area=pi times r^2 circumference=2pi times r we are given area=144pi ft^2 therefor area=pi r^2 144pi=pir^2 divide both sides by pi 144=r^2 squre root both sides 12=r subsitute circunference=2pi r circunference=2 times pi times 12 circumference=24pi answer is 24pi ft if you were to aprox pi to 3.14 and multiply you would get 75.36 ft

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