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Use the formula : pi * radius * radius = circumferance. (the radius is half of the diameter).
A2
The above answer will give you the area, not the circumference. To get the circumference from the diameter just multiply by pi. Circumference = pi x Diameter.
i agree, very ez
you know everything is not always ez pz i am in sixth grade even my mom does not know it.
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Earn +20 ptsQ: How can you find the circumference if you know what the diameter is?
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Continue Learning about Math & Arithmetic
If you know the circumference of a circle which steps can you follow to find its diameter?
Diameter = circumference/pi
What formula do you use if you know the diameter of a circle and want to find the circumference?
circumference of a circle = pi * diameter.
How do you find the circumference of Neptune if you know the diameter?
you multiply the diameter by pi.
If you have your circumference how do you find the diameter?
diameter = circumference/pi
How do you find the circumference of a circle if you know the diameter?
3.14 * Diameter2
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