https://file.aiquickdraw.com/mathbot/file/1726381357502horc2gq4.jpg

The image shows a circle with a diameter of 20 cm.

To find the circumference \(C\) of the circle, you can use the formula:
\[
C = \pi \times d
\]
where \(d\) is the diameter of the circle.

Given:
\[
d = 20 \, \text{cm}
\]

Now, calculating the circumference:
\[
C = \pi \times 20 \, \text{cm}
\]
Using \(\pi \approx 3.1416\):
\[
C = 3.1416 \times 20 = 62.832 \, \text{cm}
\]

So, the circumference of the circle is approximately **62.83 cm**.

Would you like more details or have any questions? 

Here are 5 related questions for deeper understanding:
1. How would you calculate the area of this circle?
2. What is the radius of the circle, and how does it relate to the diameter?
3. How would the circumference change if the diameter were doubled?
4. How can you express the circumference in terms of the radius instead of the diameter?
5. What would the circumference be if the diameter were 10 cm?

**Tip**: Always remember that the radius is half of the diameter, which makes it easier to switch between formulas using the radius and diameter!

Learn how to find the circumference of a circle with a diameter of 20 cm using the formula C = π × d. In this example, the solution shows how to calculate the circumference step by step. Suitable for students in Grades 5-7.

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