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勾股定理
Author:
李洋
GeoGebra
New Resources
盈利與虧蝕
平行線的判定
第三周作业效果演示
龙形曲线-分形龙2
折扣
Discover Resources
barara magic stick
n星角
Drag blue dots, any observation about H,G,O?
五圓相切
褶正三角形
Discover Topics
Trapezoid
Constructions
Differential Calculus
Division
Solids or 3D Shapes