To find the circumference of a circle, you can use the formula:
\[ C = \pi \times d \]
where \(C\) is the circumference and \(d\) is the diameter of the circle. Given that the diameter \(d\) is 64 and using \( \pi \approx 3.14\), the calculation would be:
\[ C = 3.14 \times 64 \] \[ C = 200.96 \]
Thus, the approximate circumference of the circle is 200.96.