Question

review for final examination
score: 31/50 answered: 31/50
question 32
solve the formula c = 2πr for r. hint: type π as pi.
r =
enter your answer as an expression.
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Explanation:

Step1: Isolate \( r \)

Given \( C = 2\pi r \), divide both sides by \( 2\pi \).

$$ \frac{C}{2\pi}=\frac{2\pi r}{2\pi} $$

Step2: Simplify

Simplify the right - hand side. Since \( \frac{2\pi r}{2\pi}=r \), we get \( r=\frac{C}{2\pi} \).

Answer:

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