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軌跡觀察：
Author:
吳恩誌
GeoGebra
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第八周作业2
常见四边形是否是双心四边形
双心四边形
撒针估算面积实验
折扣
Discover Resources
proof*5 張華炘
if指令
Triangle
阴影部分例子
固定三角形的條件−題2的副本
Discover Topics
Variance
Linear Programming or Linear Optimization
Function Graph
Area
Quadrilaterals