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Mathematics 9 Online
OpenStudy (anonymous):

Find the area of a circle whose circumference is 12pi ft. A. 113.04 square feet B. 24 square feet C. 144 square feet D. 108.12 square feet

OpenStudy (anonymous):

i did 3.14 * 12 and got 37.68 but idk what else to do

OpenStudy (anonymous):

12pi divided by 2pi = the radius = 6 ftArea = pi*62 = 113.097 square feet to 3 dp

OpenStudy (anonymous):

so B??

OpenStudy (isaiah.feynman):

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