Question

Given the formula for the circumferen ce a circle C ÷2 pi r,how Would you rearrange the formula if you were interested in finding the radius episode

Answer 1

To rearrange the formula for the circumference of a circle, which is given by:

\[ C = 2 \pi r \]

to find the radius \( r \), you can isolate \( r \) on one side of the equation. Here’s how to do it step-by-step:

1. Start with the original formula:
\[ C = 2 \pi r \]

2. Divide both sides by \( 2 \pi \) to solve for \( r \):
\[ r = \frac{C}{2 \pi} \]

Now you have the formula to find the radius \( r \) in terms of the circumference \( C \):
\[ r = \frac{C}{2 \pi} \]