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Author:
peter
GeoGebra
New Resources
正１７角形 作図 regular 17-gon 2
円の伸開線
standingwave-reflection-free
等積変形2
小テスト
Discover Resources
Ex_122
Pentasection of an Angle with Ruler and Compass
曲面と接平面
干渉縞
GHS数Ⅲ52111