08-08-2016
Mathematics

contestada

What is the ratio of the area of a circle with the radius r to the circumference of the circle?

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dalendrk dalendrk

08-08-2016

The area of the circle: [tex]A_O=\pi r^2[/tex]

The circumference of the circle: [tex]C_O=2\pi r[/tex]

The ratio: [tex]\dfrac{A_O}{C_O}=\dfrac{\pi r^2}{2\pi r}=\dfrac{r}{2}[/tex]

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