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97.
Author:
嶋津恒彦
GeoGebra
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standingwave-reflection
目で見る立方体の2等分
対数螺旋
正１７角形 作図 regular 17-gon 2
sine-wave
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GeoCon Problem 3.10 (Equilateral triangle on right angle)
中点多角形の重心は収束する
接平面の方程式
相似の中心の移動
半球回転2
Discover Topics
Equilateral Triangles
Scalene Triangles
Triangles
Symmetry
Dilation