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Mathematics 14 Online
OpenStudy (anonymous):

Find the area of a circle with a diameter of 20 inches. Use 3.14 for pi.

OpenStudy (anonymous):

314

OpenStudy (anonymous):

diameter is 20. to find the radius you have to half the diameter (20/2)=10 and that is your radius. the area of a circle is Area equals Pi times r times r. so its \[pir^2 \]. 100*3.14=314

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