1. **State the problem:** We need to find the circumference of a circle with a diameter of 18 yards. 2. **Formula:** The circumference $C$ of a circle is given by the formula: $$C = \pi \times d$$ where $d$ is the diameter of the circle. 3. **Given values:** - Diameter $d = 18$ yards - Use $\pi = 3.14$ 4. **Calculate the circumference:** $$C = 3.14 \times 18$$ $$C = 56.52$$ 5. **Include units:** Since the diameter was given in yards, the circumference is also in yards. **Final answer:** The circumference of the circle is $56.52$ yards.