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Author:
Huang
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩位數除以一位數(二)
異分母分數減法
三位數除以一位數(一)
柱體建築師
Discover Resources
Area of Triangle_1
掃描不等式圖
畢氏定理的證明(三移動)
拋物線3--平行四邊形法
圆锥截面为圆椭圆双曲线抛物线的动画显示.许兴华数学
Discover Topics
Circumcircle or Circumscribed Circle
Isosceles Triangles
Rotation
Area
Functions