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The angle of circumference

Author:HIRAIWA Koichi

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正１７角形　作図　regular 17-gon
小テスト
等積変形2
二次曲線と離心率
サイクロイド

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三角形の角の二等分線と比
F1 線分の移動でできる円柱
放物線と線分の共有点②
点Pの存在範囲のコピー
Ⅱ_単位円と正弦曲線（cos）

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Solids or 3D Shapes
Addition
Similarity Transformation or Similarity
Circumcircle or Circumscribed Circle
Derivative

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