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Author:
iedc
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
算柱 (兩位數)
找出對稱軸
直角坐標平面上的旋轉變換
Discover Resources
弦切角是圓心角的一半
奈格爾點與葛爾崗點互為等距共軛點
Wave Interference
dingding_test
物體的平面運動
Discover Topics
Plane Figures or Shapes
Prism
Arithmetic Operations
Unit Circle
Bar Chart or Bar Graph