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三角形内角和练习题课件
Author:
迟中金
Topic:
Triangles
GeoGebra
New Resources
兩組對邊相等的四邊形
三位數除以一位數（一）
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
兩位數加法
Discover Resources
Special Lines & Centres of Triangles 三角形的特殊線和中心
FHMS Corr Angles (1 Pair)
Copy of 固定面積的圖形的周界變化
正四角錐(可以旋轉， 顯示邊， 選擇透視)
金惠吉：三维李萨如
Discover Topics
Translation
Frequency Distribution
Plane Figures or Shapes
Trigonometry
Differential Equation