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perimeter
Author:
Tmw
GeoGebra
New Resources
四邊形的特性
異分母分數減法
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
画直线等分三角形的面积
Discover Resources
Drag the red dots, see the area ratio of EHFG to ABCD
Percentage(百分法)
旋轉六邊形
平面几何问题
折扣 例1的副本
Discover Topics
Plane Figures or Shapes
Incircle or Inscribed Circle
Pie Chart or Circle Chart
Logic
Intersection