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How do you calculate the circumference of a circle from its diameter and the other way around? 7th grade geometry... fun.
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How do you calculate the circumference of a circle from its diameter and the other way around?

7th grade geometry... fun.

User JDT
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Answer:

with the diameter, you can find the radius by doing diameter divided by 2. the formula for the circumference of a circle is 2 x pi x r or pi x diameter

Explanation:

User Tuxxi
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