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Hypotrochoid

Author:T.AKUTA

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接点の作る円は内接円
アステロイド
正１７角形　作図　regular 17-gon
サイクロイド
standingwave-plus

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球面上の2点を結ぶ大円の投影
pascal
立体花紋折り
フォイエルバッハ円
三平方の定理の証明③

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Geometry
Perimeter
Exponential Functions
Circumcircle or Circumscribed Circle
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