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angle sum of triangles
作者：
Anil Kumar
主題：
三角形
GeoGebra
最新資源
Graphs of Rational Expressions
Parallel Line Image Maker
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Untitled
Which Quadrilateral is Which?
探索資源
Perpendicular lines
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geo5
day 107
Polar curves: wrapping a function around the pole
探索主題
不等邊三角形
Plane Figures or Shapes
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