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平行四邊形面積一
Author:
youzhen shih
Topic:
Area
GeoGebra
New Resources
异形操场
第三周作业效果演示
科赫雪花
正方形雪花图案
盈利與虧蝕
Discover Resources
中線定理(阿波羅尼奧斯)定理推廣二:向四邊形推廣
數軸
test06
reflection points
我的第一个绘本
Discover Topics
Conic Sections
Plane Figures or Shapes
Kite
Tangent Function
Functions