https://file.aiquickdraw.com/mathbot/file/1727217536619svkqpkxq.jpg

To find the circumference of the circle shown in the image, where the diameter is given as 4 cm, we use the formula:

\[
\text{Circumference} = \pi \times \text{diameter}
\]

Here, the diameter \( d \) is 4 cm. Therefore:

\[
\text{Circumference} = \pi \times 4 \text{ cm} = 12.566370614359172 \text{ cm}
\]

Rounded to two decimal places, the circumference is approximately \( 12.57 \) cm.

Would you like to know more details or do you have any other questions? Here are a few related topics you might find interesting:
1. How to calculate the area of a circle given the radius or diameter?
2. What are the properties of pi (\(\pi\)) and why is it important in circle calculations?
3. How can the diameter be determined from the circumference of a circle?
4. What applications involve the calculation of circumference in real life?
5. How does the calculation of the circumference relate to the concept of radians and arc length in a circle?

Tip: When measuring or calculating values in geometry, always check if your answer requires a specific unit of measure or a particular degree of precision (like rounding to a certain number of decimal places).

Work out the circumference, correct to 2 decimal places. (The diameter of the circle is 4 cm.)

Learn how to calculate the circumference of a circle with a diameter of 4 cm. Using the formula Circumference = π × diameter, this geometry problem demonstrates how to round the answer to two decimal places. Suitable for Grades 6-8.

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