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For any triangle, you can draw a circle that fits perfectly inside (the incircle) and also one that connects all its corners (the circumcircle). This shows the path of the centre of the incircle, as a triangle is shuffled around its circumcircle. [code]

For any triangle, you can draw a circle that fits perfectly inside (the incircle) and also one that connects all its corners (the circumcircle). This shows the path of the centre of the incircle, as a triangle is shuffled around its circumcircle. [code]

18. Ellipse - Wikipedia, the free encyclopedia

18. Ellipse - Wikipedia, the free encyclopedia

wildberry-poptart:  We got to draw circle things in class.

wildberry-poptart: We got to draw circle things in class.

3D
http://acupunctureschoolonline.com/wp-content/uploads/2010/03/BL-28-Bladder-Shu-PANGGUANGSHU-1.jpg

http://acupunctureschoolonline.com/wp-content/uploads/2010/03/BL-28-Bladder-Shu-PANGGUANGSHU-1.jpg

Parametric Worldhttp://parametricworld.tumblr.com/post/77260120109/mirandamolina-elipse-de-van-schooten

Parametric Worldhttp://parametricworld.tumblr.com/post/77260120109/mirandamolina-elipse-de-van-schooten

Triple Fibonacci spirals

Triple Fibonacci spirals

Progression of the first 10,000 digits of π - Visualizing the Infinite Beauty Of Pi And Other Numbers | The Creators Project

Progression of the first 10,000 digits of π - Visualizing the Infinite Beauty Of Pi And Other Numbers | The Creators Project

Aproximación de la espiral logarítmica al círculo. Put a=(1+i θ/N), and take a limit N→∞ then the logarithmic spiral approaches the unit circle. https://plus.google.com/117571531168434933316/posts/RNK3YNpqduB

Aproximación de la espiral logarítmica al círculo. Put a=(1+i θ/N), and take a limit N→∞ then the logarithmic spiral approaches the unit circle. https://plus.google.com/117571531168434933316/posts/RNK3YNpqduB

Excellent use of the chord theorem (when two chords intersect each other inside a circle, the products of their segments are equal.

Excellent use of the chord theorem (when two chords intersect each other inside a circle, the products of their segments are equal.