Verified Answer :

GinnyAnswer

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

Circumference (C) = π Diameter (D)

Given that the diameter (D) of the circle is 10 mm, you can plug this value into the formula:

C = π 10 mm

The value of π (Pi) is approximately 3.141592653589793, and multiplying it by the diameter gives you:

C ≈ 3.141592653589793 * 10 mm
C ≈ 31.41592653589793 mm

When you round this to one decimal place, you will get 31.4 mm. Therefore, the circumference of a circle with a diameter of 10 mm is approximately 31.4 mm. This matches the second choice from the provided list of possible answers.

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