Solution to the game with three circles.

作者:Doru Paunescu

Three blue circles with the same radius R meets two by two in A1, A2 respectively in A3. The red circle circumscribed to the triangle A1A2A3 has the same radius R iff the blue circles have a common point.

新资源

Functia liniara definită pe un interval
Flowers - ellipses- Arina(MD)
Geometry in real life- crop circles (Nicoglu Sabina MD)
Problema nr 6 Sub III Test nr 1
TANGRAM

发现资源

Dreapta lui Pascal
Animatie
Fără titlu
Problema 10
Aria unui triunghi

发现主题

直角三角形
平均数
抛物线
二维向量
圆锥曲线