Final answer:
To find the diameter of a circle when you know its circumference, divide the circumference by π and then divide the result by 2.
Step-by-step explanation:
The correct step to follow in order to find the diameter of a circle when you know its circumference is to divide the circumference by π and then divide the result by 2. This is because the formula for the circumference of a circle is C = πd, where d represents the diameter. To solve for d, we can rearrange the formula to d = C/π, and then divide the result by 2 to find the diameter.
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