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顶点在正方形对角线上的等腰三角形构成了一个等腰直角三角形
Author:
白龙
Topic:
Triangles
GeoGebra
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撒针估算面积实验
龙形曲线-分形龙2
科氏力 (Coriolis Force)
第八周作业1
平行線的判定
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i love you
點到直線的距離 8:觀察平行線常數項的差距
P53_3c
十分位分數
开关灯
Discover Topics
Area
Geometric Mean
Coordinates
Constructions
LCM and GCD