Does anybody know any math websites that can help me understand the equation of a circle?

I have a test tomorrow, so quick responses wold be very much appreciated.

Check out my Math Variety blog posts on how to find the center and radius of a circle. I have the general equation of a circle, practice problems, and solutions. Click on ads/links of interest.
http://mathvariety.blogspot.com/2009/06/circles.html
http://mathvariety.blogspot.com/2009/06/circles-practice-problems.html
http://mathvariety.blogspot.com/2009/06/circles-solutions-to-practice-problems.html

This entry was posted on Wednesday, December 30th, 2009 at 11:37 am and is filed under math websites. 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 “Does anybody know any math websites that can help me understand the equation of a circle?”

michalakd on December 30th, 2009 at 5:20 pm

what equation? Just google "area of a circle" or "circumference of a circle" or whatever equation you need. good luck with your test.
References :
Benjamin on December 30th, 2009 at 5:30 pm

There are several different equations which can be used to describe a circle. The most common one is:

X^2+Y^2=r^2

you need to explain more fully what you do not understand about "the equation of a circle"
References :
http://en.wikipedia.org/wiki/Circle
stevemar2 on December 30th, 2009 at 5:35 pm

Check out my Math Variety blog posts on how to find the center and radius of a circle. I have the general equation of a circle, practice problems, and solutions. Click on ads/links of interest.
http://mathvariety.blogspot.com/2009/06/circles.html
http://mathvariety.blogspot.com/2009/06/circles-practice-problems.html
http://mathvariety.blogspot.com/2009/06/circles-solutions-to-practice-problems.html
References :

Websites