Question
solve the formula for r.
A. r=2πC
B.r=2π+C
C.r= 2π/C
D.r= C/2π
A. r=2πC
B.r=2π+C
C.r= 2π/C
D.r= C/2π
Answers
GPT-4o mini
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. \( r = \frac{C}{2\pi} \)**.
\[
C = 2\pi r
\]
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. \( r = \frac{C}{2\pi} \)**.