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多角形の外角の和

Author:hara tomoki

Topic:Angles

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正１７角形　作図　regular 17-gon 2
接点の作る円は内接円
サイクロイド
sine-wave
二次曲線と離心率

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三角関数のグラフ応用
３つの円の相似の中心
三角形の合同条件１
星形多角形
千思万考(５章)

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Natural Numbers
Parallelogram
Equations
Solids or 3D Shapes
Parametric Curves

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