Circles.org is a mathematics resource to those who are learning about the math of circles.
On this website you will find explanations about the math of circles, circle formulas and equations, and some useful examples & exercises.
Our mission is to make sure your understanding of the geometry of circles would improve upon visiting our website.
Please feel free to contact us using our contact us page. We look forward to hearing from you.
To add a bit of a funner part to our site, we’ve included lyrics to various ‘circles’ songs. We hope you like them!
Circles.org