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正2
Author:
lzp80
GeoGebra
New Resources
三角函数 的副本
平行線的判定
常见四边形是否是双心四边形
异形操场
圓的基本性質
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任務3
n星角
過圓內c點的弦中點軌跡
簡單動畫
圆的有关概念
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Tangent Function
Trigonometric Functions
Solids or 3D Shapes
Translation
Percentages