1. **State the problem:** We need to find the circumference $C$ of a circle with diameter $d = 10$ m.
2. **Formula:** The circumference of a circle is given by $$C = \pi d = 2\pi r$$ where $d$ is the diameter and $r$ is the radius.
3. **Given:** $d = 10$ m and $\pi = 3.14$.
4. **Calculate circumference using diameter:**
$$C = 3.14 \times 10$$
5. **Simplify:**
$$C = 31.4$$
6. **Answer:** The circumference of the circle is $31.4$ meters.
Circle Circumference E9905D
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