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作者：
amattick
GeoGebra
最新資源
Two Triangle Theorem
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Right Triangle Trig Ratios: sin, cos, tan
Line Through Two Points and Slope
Identify Opposite, Adjacent, Hypotenuse
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homework
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Trisection of angles to form an equilateral triangle
探索主題
3D 立體形
橢圓
3D 向量（三維）
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Dilation