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Pythagorean Fractal Tree
Author:
魏向东
GeoGebra
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平行線的判定
异形操场
龙形曲线-分形龙
圓的切線方程
圓的基本性質
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代數運算：外心座標
圓錐截痕
Q2-3
somacube
S2 Chapter11.1 三角形的對鄰斜
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Means
Linear Equations
Arithmetic
Circle
Linear Functions