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Trapezium fixed height
Author:
iedc
GeoGebra
New Resources
三角函数 的副本
第八周作业
龙形曲线-分形龙
斐波那契螺旋弧线（表格法-可动态调节）
双心四边形
Discover Resources
volleyball throughing
小數試用
ghseh 二次函數描點法左右平移-4
分數比較
勾股定理
Discover Topics
General Quadrilateral
Isosceles Triangles
Quadratic Equations
Histogram
Differential Calculus