GoGeometry Action 62!

主题:圆

Creation of this applet was inspired by a tweet from Antonio Gutierrez. Both circles are tangent to each other at the small white point. How can we formally prove what this applet informally illustrates?

Quick (Silent) Demo

新资源

Regular Polygons and Equivalent Triangles
Sum of Squares: Proof without Words
Focus and Directrix
The Gardener's Circle
Regular Star Polygons

发现资源

Simetri putar persegi panjang
SSS exit ticket imani torres
Kružnice trojúhelníku opsaná a vepsaná - Klára Hajduová
เรือเล็กควรออกจากฝั่ง

发现主题

作图
图表
外接圆
上和与下和或黎曼和
椭圆