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5 votes
How do you find circumference using radius

2 Answers

3 votes

Determine the radius of a circle. Let's assume it's equal to 14 cm.

Substitute this value to the formula for circumference: C = 2 * π * R = 2 * π * 14 = 87.9646 cm.

You can also use it to find the area of a circle: A = π * R² = π * 14² = 615.752 cm².

Finally, you can find the diameter - it is simply double the radius: D = 2 * R = 2 * 14 = 28 cm.

Use our circumference calculator to find the radius when you only have the circumference or area of a circle.

If you wish to calculate the properties of a three-dimensional solid, such as a sphere, cylinder or cone, it's best to use our volume calculator.

Hope this helped a little :)

User Jonnybinthemix
by
8.1k points
4 votes

Answer:

C=π×2r

Circumference is equal to pi times double the radius

User Aldasa
by
8.3k points

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