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几何与勾股定理
Author:
叶明杰
GeoGebra
New Resources
盈利與虧蝕
比較五件物件的重量
第八周作业
百分數及其應用
异形操场
Discover Resources
Conic section
ABC 1
極座標
構作放大圖形
S408 Penrose 階梯
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Step Functions
Polygons
Incircle or Inscribed Circle
Area
Circle