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老皮
Author:
alina0217
GeoGebra
New Resources
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
柱體建築師
四邉形 (四年級) 教師版
三位數除以一位數（二）
Discover Resources
n star
Name the prism 1
相似三角形的应用
Sierpinski Carpet
平行四邊形堆垛
Discover Topics
Equilateral Triangles
Circumcircle or Circumscribed Circle
Square
Exponent
Ratios