santanakaiser santanakaiser
  • 19-01-2020
  • Mathematics
contestada

what is the ratio of the area of a circle with radius r to the circumstances of a circle

Respuesta :

calculista
calculista calculista
  • 26-01-2020

Answer:

[tex]ratio=\frac{r}{2}[/tex]

Step-by-step explanation:

The correct question is

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

we know that

The area of the circle is equal to

[tex]A=\pi r^{2}[/tex]

The circumference of the circle is equal to

[tex]C=2\pi r[/tex]

To find out the ratio, divide the area by the circumference

[tex]ratio=\frac{A}{C}=\frac{\pi r^2}{2\pi r}[/tex]

Simplify

[tex]ratio=\frac{r}{2}[/tex]

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