To find the circumference of the circle in the image, we need to first understand that the number "16" represents the diameter of the circle.

The formula to calculate the circumference $C$ of a circle is:

$C = \pi \times d$

Where $d$ is the diameter.

In this case, the diameter $d = 16$. Now, we can calculate the circumference.

$C = \pi \times 16 \approx 3.1416 \times 16$

Let me compute that for you.The circumference of the circle is approximately $50.3$ units, rounded to the nearest tenth.

Would you like further details or have any other questions?

Here are five related questions to expand on this:

1. How is the circumference formula related to the area of a circle?
2. What is the area of a circle with the same diameter of 16 units?
3. How do we calculate the radius if the circumference is known?
4. What is the relationship between the diameter and radius of a circle?
5. How would the circumference change if the diameter were doubled?

Tip: Remember, the radius of a circle is always half of the diameter. This can simplify many calculations involving circles!