Question

what is one way you can rewrite the formula for the circumference of a circle, $c = 2\pi r$, to isolate the length of the radius, $r$? use the drop - down arrow to complete the sentence. to rewrite the formula in order to isolate the length of the radius, you subtract 2π from both sides to get r = c - 2π divide both sides by 2π to get r = c / 2π multiply both sides by 2π to get r = 2πc

Explanation:

Step1: Identify the goal

Isolate $r$ in $C = 2\pi r$.

Step2: Apply inverse - operation

Since $r$ is multiplied by $2\pi$, divide both sides by $2\pi$. So $r=\frac{C}{2\pi}$.

Answer:

divide both sides by $2\pi$ to get $r = \frac{C}{2\pi}$