How do you find area of a circle with circumference?

how do u find area of a circle using circumference for example 18.84 units is the circumference.

Divide the circumference by PI (approximately 3.14159) to get the diameter. Then divide the diameter by 2 to get the radius. Then the area is equal to PI times (radius squared). Usually stated as A = PI*r^2.

This entry was posted on Friday, March 26th, 2010 at 5:36 pm and is filed under circle area. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

3 Responses to “How do you find area of a circle with circumference?”

ell.oh.vee.ee♥ on March 26th, 2010 at 10:49 pm

okayy well circumference= pi or 3.14 times the radius squared or 3.14 times the diameter. Since you have 18.84 units for the circumference you just do the formula backwards
References :
DrScience on March 26th, 2010 at 11:12 pm

Divide the circumference by PI (approximately 3.14159) to get the diameter. Then divide the diameter by 2 to get the radius. Then the area is equal to PI times (radius squared). Usually stated as A = PI*r^2.
References :
hrefdg on December 21st, 2010 at 10:18 am

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