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Interior angles of a triangle
作者：
sylorm
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角度
GeoGebra
最新資源
Triangle with 3 Right Angles
Reflection = 180° Rotation about a Line
Untitled
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Making New Year's resolutions for 2026
探索資源
Special Lines in Triangles Proofs
Circle Angles
Conjecturing About the Diagonals of a Rectangle
探索主題
幾何
圖
垂心
正切函數
加法