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rectangle
Author:
chengkp
GeoGebra
New Resources
圓周公式的應用
圓的切線方程
直線的斜率
多邊形的面積
球体的体积推导
Discover Resources
Polygonal numbers
滾動的圓
Transformation of Functions
Copy of 七巧板
美图欣赏-线绳艺术