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包絡線（放物線）
Author:
Bunryu Kamimura
Topic:
Parabola
GeoGebra
New Resources
サイクロイド
sine-wave
対数螺旋
小テスト
正１７角形 作図 regular 17-gon
Discover Resources
test.html
内接四角形のしきつめ
円周角2
GHS2417
垂線１
Discover Topics
Natural Numbers
Incircle or Inscribed Circle
Geometry
Arithmetic
Reflection