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Shadow of a Sphere
Author:
Tatsuyoshi Hamada
GeoGebra
New Resources
standingwave-reflection
サイクロイド
円の伸開線
二次曲線と離心率
standingwave-reflection-fixed
Discover Resources
正方形の作図（省エネ）
再び円周率の求め方ーその２
新テスト問題例
中1_平行移動と回転移動
多角形の回転
Discover Topics
Root
Prism
Vectors 3D (Three-Dimensional)
Parallelogram
Addition