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三垂直
Author:
谢鹏
GeoGebra
New Resources
斐波那契螺旋弧线(表格法)
比較五件物件的重量
龙形曲线-分形龙2
科赫雪花
折扣
Discover Resources
等積的正方形與正三角形
對角線
貸款
transformation_translation
圓心角
Discover Topics
Cuboid
Optimization Problems
Rotation
Cosine
Diagrams