Mathematics, 21.06.2019 20:30 shan6171
Acircle has a circumference of 7.850 units. what is its radius?
Answers: 2
![\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=7.850 \end{cases}\implies 7.850=2\pi r\implies \cfrac{7.85}{2\pi }=r\implies 1.25\approx r](/tpl/images/0001/5350/a81c6.png)
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Acircle has a circumference of 7.850 units. what is its radius?...
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