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楕円とその焦点2
Author:
philomathesis
GeoGebra
New Resources
sine-wave
対数螺旋
接点の作る円は内接円
サイクロイド
standingwave-reflection-fixed
Discover Resources
石とりゲーム（理論版）a Japanese children's game
What is blue curve? No.3
正四面体
サイクロイド
フェルマー三角形の等分
Discover Topics
Arithmetic Mean
Perimeter
Probability
Sphere
Rectangle