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reach_4_5
Author:
早苗雅史
GeoGebra
New Resources
接点の作る円は内接円
正１７角形 作図 regular 17-gon
standingwave-reflection-fixed
standingwave-plus
円の伸開線
Discover Resources
平行線の問題
二次方程式の根
三角関数の合成
包絡線（神戸大2006）
回転体(四角形)
Discover Topics
Solids or 3D Shapes
Diagrams
Constructions
Cosine
Pythagoras or Pythagorean Theorem