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三角形の五心とオイラー線
Author:
栗﨑祐樹(Yuki Kurisaki)
GeoGebra
New Resources
正17角形 作図 regular 17-gon 2
等積変形2
コイン投げと樹形図
standingwave-reflection-free
平均変化率
Discover Resources
golden ratio
default 800by450
うし時計
おうぎ形 面積も入ってます
ケイズICT
Discover Topics
Arithmetic Operations
Similar Triangles
Intersection
Fractal Geometry
Inequalities