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三角形不等式
Author:
cyrus
GeoGebra
New Resources
龙形曲线-分形龙
撒针估算面积实验
垂直線的斜率
直線的斜率：水平變化 & 鉛垂變化
圓的基本性質
Discover Resources
function
堆垛
Clock Simulation
anlge at centre twice angle at circumference
翰林數學_2下_CH3-2_ASA作圖
Discover Topics
Trapezium
Correlation
Parametric Curves
Stochastic Process or Random Process
Polygons