Question

The radius of a circle is 3 centimeters. What is the circumference?Give the exact answer in simplest form. ___ centimeters (pi, fraction)

Answer 1

ANSWER

$18\frac{6}{7}$

SOLUTION:

The formula for circumference is 2 * pi * r

the value of pi can be estimated as 3.14 or 22/7

Using the formula

$\begin{gathered} 2\text{ }\times\text{(}\frac{22}{7}\text{)}\times3 \\ \frac{132}{7} \\ 18\frac{6}{7} \end{gathered}$