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三角形の傍心（excenters）
Author:
Takayuki Kamei
GeoGebra
New Resources
サイクロイド
正１７角形 作図 regular 17-gon 2
standingwave-reflection
standingwave
standingwave-reflection-fixed
Discover Resources
等円術３円
Mamikon's theory/楕円の周囲の接線団
P93研究 例１
回転体4step464-2
通術 ４円
Discover Topics
Subtraction
Functions
Unit Circle
Integral Calculus
General Quadrilateral