Answers

2016-01-22T15:23:39+08:00
Solve it inversely. We need to know that radius first. Therefore,

C=2 \pi r\\44cm=2(3.14)(r)\\44cm=6.28r\\ \frac{44cm}{6.28}= \frac{6.28r}{6.28} \\7.01cm=r

then...

 A= \pi r^2 \\ A = (3.14)(7.01cm)^2 \\ A = (3.14)(49.1401cm^2) \\ A = 154.299914cm^2

Therefore, the answer to your question is 154.299914 cm².
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