Question: User: A=2pir 2(6) pi 12pi
1. **State the problem:**
We are given the formula for the circumference of a circle, which is $A = 2\pi r$.
2. **Identify the values:**
Here, the radius $r$ is given as $6$.
3. **Apply the formula:**
Substitute $r = 6$ into the formula:
$$A = 2 \pi \times 6$$
4. **Simplify the expression:**
$$A = 12 \pi$$
5. **Interpretation:**
The circumference of the circle with radius $6$ is $12\pi$ units.
This is the final answer.