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三角形三边关系
Author:
许春兰
GeoGebra
New Resources
椭圆内切圆链
百分數及其應用
第八周作业2
第三周作业效果演示
龙形曲线-分形龙
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圓圓求切圓
圓與弦2
平行四邊形
Copy of 數線的繪製
拋物線3-平行四邊形法
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Histogram
Linear Functions
Probability
Isosceles Triangles
Special Points