Question

what is a formula of radius of circle

Answer 1

Radius=diameter/2 answer

Answer 2

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$\Huge{\red{\underline{\textsf{Answer}}}}$

$\textbf{Diagram}$

$\setlength{\unitlength}{2 mm}\begin{picture}(30,20)\thicklines\qbezier(12.95,20)(13.6,26.2)(20,26.86)\qbezier(20,26.86)(26.6,26.2)(26.95,20)\qbezier(26.95,20)(26.27,13.4)(20,12.9)\qbezier(20,12.9)(13.3,13.5)(12.95,20)\put(7,7){ . }\end{picture}$

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$\textbf{Formula}$

$\pink\longrightarrow$ $\large\pink{\sf r = \frac {c}{2 \pi}}$

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