The diameter of a circle is 36 miles. What is the circle's circumference?

The circumference \( C \) of a circle can be calculated using the formula:

\[
C = \pi d
\]

where \( d \) is the diameter of the circle.

Given that the diameter \( d \) is 36 miles, the circumference is:

\[
C = \pi \times 36 \text{ miles} \approx 3.1416 \times 36 \text{ miles} \approx 113.0976 \text{ miles}
\]

So, the circumference of the circle is approximately 113.10 miles.

Would you like more details or have any questions? Here are some related questions you might consider:

1. What is the radius of the circle if the diameter is 36 miles?
2. How would the circumference change if the diameter were increased to 72 miles?
3. What is the area of a circle with a diameter of 36 miles?
4. If you know the circumference, how can you calculate the diameter?
5. How is the radius related to the circumference?

**Tip:** The circumference of a circle increases linearly with its diameter, meaning doubling the diameter will double the circumference!

Learn how to calculate the circumference of a circle with a diameter of 36 miles using the circumference formula C = π * d. Understand the relationship between the diameter and circumference of a circle. Suitable for students in Grades 6-8.

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