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三角形内任一点与随机顶点的迭代
Forfatter
孟宝兴
GeoGebra
Nye Materialer
Rotating Points (Optical Illusion)
Stairs (Optical Illusion)
Bottema's Theorem
Piano. Keyboard.
van Aubel's Theorem
Opdag Ressourcer
Square Template (Scaffolded Investigation)
Mike
Short Run Investigation
เรือท่องทะเล
三角形的外角
Udforsk emner
Ligninger
Ellipse
Koordinates
Sinus
Kugle