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OpenStudy (anonymous):
What is the area of a circle with a circumference of 30 feet? 30 square feet B. 71.7 square feet C. 109.4 square feet D. 287 square feet
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OpenStudy (anonymous):
AREA of a circle = pi r^2 AND circumference of a circle = 2 pi r
OpenStudy (anonymous):
does that help?
OpenStudy (anonymous):
where do l plug in the 30ft
OpenStudy (anonymous):
|dw:1344693772262:dw| find r at first
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