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アポロニウスの円（内分・外分）
Author:
Bunryu Kamimura
Topic:
Circle
,
Triangles
AC:CB=AD:BD
GeoGebra
New Resources
standingwave
小テスト
等積変形2
斜めドップラー
目で見る立方体の2等分
Discover Resources
二次関数 test
数学2 平行線と面積
接線と弦のつくる角 例題2
授業参観
放物線の極線が平行になる条件
Discover Topics
LCM and GCD
Similar Triangles
Sequences and Series
Area
Root