Question

The formula c=2pier relates the radius r of a circle to its circumference C. Solve for the formula for r

Answer 1

Answer:
`r = (C)/(2\pi )`

Explanation:

Im assuming you mean
`C = 2\pi r`.

To solve for r means that you have to isolate it like c is currently. To do this you would have to divide by whatever it's multiplied by (in this case 2pi).

If you divide both the right and left sides by this you get

`r = (C)/(2\pi )`