To find the circumference \( C \) of a circle, you can use the formula:
\[ C = \pi \times d \]
where \( d \) is the diameter. Given that the diameter is 16, you can substitute that into the formula along with \( \pi \approx 3.14 \):
\[ C = 3.14 \times 16 \]
Now, calculate that:
\[ C = 50.24 \]
So, the approximate circumference of the circle is 50.24 when rounded to the nearest hundredth.