To solve this, we are going to use the formula for the circumference of a circle:
![C=2 \pi r](https://img.qammunity.org/2019/formulas/social-studies/high-school/n1na47c5s7k8kv8qc52zs8kdtj6pewdohl.png)
where
![C](https://img.qammunity.org/2019/formulas/mathematics/college/w3rd0yqwtxbxsq5htlaj65pjl1t120ak5w.png)
is the circumference of the circle
![r](https://img.qammunity.org/2019/formulas/mathematics/middle-school/fup2d4h7t3viftoy9friumyess437eso1p.png)
is the radius of the circle
We know for our problem that the radius of our circle is 3m, so
![r=3](https://img.qammunity.org/2019/formulas/mathematics/college/r3j2rdjmljc2imswysidx3htkb08q8a4wj.png)
. Lets replace that value in our formula to find
![C](https://img.qammunity.org/2019/formulas/mathematics/college/w3rd0yqwtxbxsq5htlaj65pjl1t120ak5w.png)
:
![C=2*3.14*3](https://img.qammunity.org/2019/formulas/mathematics/college/2ufj5q6fksvy9boqjg3ujxpt6izwva47bc.png)
![C=18.84](https://img.qammunity.org/2019/formulas/mathematics/college/tk2yzeq95ymibfugzbtksr41fgaeloyhsu.png)
We can conclude that the circumference of our circle is
18.84 m.