circumference of a circle with a given radius
Check the final answer first, then review the worked steps.
Problem
circumference of a circle with a given radius
Step-by-step solution
The circumference of a circle is calculated using the formula $C = 2 \pi r$. Given $r=7$, $C = 2 \pi (7) = 14 \pi \approx 43.98$ units.
Answer
43.98 units