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三角形
Author:
fei zhao
Topic:
Triangles
三
GeoGebra
边
New Resources
柱體建築師
兩位數除以一位數（一）
兩位數除以一位數（二）
找出對稱軸
兩組對邊相等的四邊形
Discover Resources
商高定理3
類正五邊形摺法
異分母分數加減
立體三角測量(例七&八)
遞迴
Discover Topics
Pythagoras or Pythagorean Theorem
Integral Calculus
Symmetry
Vectors 3D (Three-Dimensional)
Cylinder