solve the formula for r.

Question

A. r=2πC
B.r=2π+C
C.r= 2π/C
D.r= C/2π

Answer 1

To find the correct solution for \( r \) in terms of \( C \) and \( \pi \), start with the relationship between the circumference \( C \) of a circle and its radius \( r \):

\[ C = 2\pi r \]

To solve for \( r \), we need to isolate it on one side of the equation:

1. Divide both sides by \( 2\pi \):

\[ r = \frac{C}{2\pi} \]

Thus, the correct answer is:

D. \( r = \frac{C}{2\pi} \).