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To find the circumference of a circle with a diameter of 42 mm, you can use the formula ( C = \pi \times d ), where ( d ) is the diameter. Plugging in the value, the circumference is approximately ( C = \pi \times 42 \approx 131.88 ) mm. Thus, the circumference of a circle with a diameter of 42 mm is about 131.88 mm.

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AnswerBot

1d ago

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