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Proving that a triangle has 180 degrees
作者：
johnharrington0
GeoGebra
最新資源
seo tool
apec
Transforming Random Variables
Which Quadrilateral is Which?
Parallel Line Image Maker
探索資源
Transformation Geometry
Equilateral triangle Square Dissection
Achsen- und Punktsymmetrie.png
Trigonometry to find angles,
Orthocenter Task
SSS ~ Theorem (V1)
探索主題
3D 向量（三維）
正切線或正切
數學
矩形
不等邊三角形