What is the circumference of a circle with a diameter of 152 mm? 

To find the circumference of a circle, you can use the formula:

\[
C = \pi \times d
\]

where \( C \) is the circumference, \( \pi \approx 3.14159 \), and \( d \) is the diameter of the circle.

Given that the diameter \( d \) is 152 mm, we can plug this value into the formula:

\[
C = \pi \times 152 \, \text{mm}
\]

\[
C \approx 3.14159 \times 152 \, \text{mm}
\]

\[
C \approx 477.52268 \, \text{mm}
\]

Rounding to two decimal places, the circumference is approximately:

\[
C \approx 477.52 \, \text{mm}
\]

So, the circumference of the circle is about **477.52 mm**.

Would you like more details or have any questions?

Here are 5 related questions for further practice:

1. What is the circumference of a circle with a radius of 76 mm?
2. How would you calculate the area of a circle with a diameter of 152 mm?
3. If the circumference of a circle is 300 mm, what is its diameter?
4. What is the circumference of a circle with a diameter of 250 mm?
5. How do you convert the circumference from millimeters to centimeters?

**Tip:** The circumference of a circle can also be calculated using the radius with the formula \( C = 2\pi r \), where \( r \) is the radius of the circle.

Learn how to calculate the circumference of a circle with a diameter of 152 mm using the formula C = \pi \times d. Understand the application of \( \pi \approx 3.14159 \) and its calculation to find the circumference. Suitable for students in Grades 7-9.

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