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優良作品6
Author:
Ching-Hui Chou
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
找出對稱軸
画直线等分三角形的面积
Discover Resources
判別式
电子表格建点
vector stack pile
對稱(LEVEL 1)
面積
Discover Topics
Quadrilaterals
Linear Programming or Linear Optimization
Centroid or Barycenter
Expected Value
Coordinates