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梯形
Author:
Chan Ting Hin
Topic:
Trapezoid
GeoGebra
New Resources
拼砌四邊形
四邊形的特性
三位數除以一位數（一）
四邉形 (四年級) 教師版
画直线等分三角形的面积
Discover Resources
圓錐的曲面面積
test1
三節棍的軌跡
Lens
歐拉圓
Discover Topics
Diagrams
Equilateral Triangles
Quadratic Equations
Exponential Functions
Parallelogram