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内分点（２：１）
Author:
kyouko
Topic:
Constructions
GeoGebra
New Resources
直線の軌跡
接点の作る円は内接円
アステロイド
二次曲線と離心率
対数螺旋
Discover Resources
PonDeRing
四角形の逆中点四角形
polygem
フォイエルバッハ円
複素数の内分点・外分点
Discover Topics
Linear Regression
Cube
Correlation
Upper and Lower Sum or Riemann Sum
Secant Line or Secant