To find the circumference of a circle, you can use the formula:
\[ C = \pi \times d \]
where \( C \) is the circumference and \( d \) is the diameter of the circle.
Given a diameter of 5.75 miles, and using \( \pi \) as 3.14, you can calculate the circumference as follows:
\[ C = 3.14 \times 5.75 \]
Now let's perform the multiplication:
\[ C = 3.14 \times 5.75 = 18.095 \]
To round this to the hundredths place, you look at the third decimal place (which is 5 in this case). Since it is 5, you round up:
Thus, the estimated circumference is:
18.10 miles.