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siki-hyouji
Author:
tsujimura
GeoGebra
New Resources
正１７角形 作図 regular 17-gon
円の伸開線
standingwave-reflection-free
対数螺旋
サイクロイド
Discover Resources
最大公約数
構造的同相な図形（平面図形）
再帰反射球面その２
作図の楽しさ（3円相似のまとめ）
楕円光線反射
Discover Topics
Circumcircle or Circumscribed Circle
Vectors 2D (Two-Dimensional)
Rotation
Bar Chart or Bar Graph
Random Experiments