A circle has a circumference of 7{,}8507,8507, comma, 850 units. What is the radius of the circle?

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asked Oct 21, 2020 234k views

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A circle has a circumference of 7{,}8507,8507, comma, 850 units. What is the radius of the circle?

Mathematics
high-school

CDJB asked

by CDJB

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2 Answers

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Answer:

1249.37 units

Explanation:

Alexander Tarasenko answered Oct 24, 2020

by Alexander Tarasenko

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$\bf \textit{circumference of a circle}\\\\ C=2\pi r~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=7850 \end{cases}\implies 7850=2\pi r\implies \cfrac{7850}{2\pi }=r\implies 1249.37\approx r$

Manelizzard answered Oct 26, 2020

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