To find the diameter of a circle when given its circumference, you can use the formula for the circumference of a circle:
\[ C = \pi \times d \]
Where:
- \( C \) is the circumference,
- \( \pi \) is approximately 3.14,
- \( d \) is the diameter.
Given that the circumference \( C \) is 574 meters, we can rearrange the formula to solve for the diameter \( d \):
\[ d = \frac{C}{\pi} \]
Now, substituting the known values:
\[ d = \frac{574}{3.14} \]
Calculating this gives:
\[ d \approx 183.1 , \text{meters} \]
So the diameter of the circle, rounded to the nearest tenth, is approximately 183.1 meters.