The diameter of a circle is 4 inches. What's the circle's circumference?
Reference:
c-dr
C-2rx
2-3.14
A. 12.56
B. 24.42
C. 36.67
D. 48.54

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Answer:

Step-by-step explanation:

circumference = diameter × π = 4π inches ≅ 12.56 inches