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Clockwise Rotation (2,3)
Author:
amn
GeoGebra
New Resources
第八周作业
撒针估算面积实验
龙形曲线-分形龙2
双心四边形
正方形雪花图案
Discover Resources
龍騰4_1-1課隨2
五上_面積（二）
银币
螢橋國中 鄭毅華
等比数列计算练习
Discover Topics
Isosceles Triangles
Circumcircle or Circumscribed Circle
Upper and Lower Sum or Riemann Sum
Equilateral Triangles
Matrices