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变化的三角形的旁心.许兴华数学
Author:
许兴华数学
Topic:
Geometric Transformations
,
Triangles
GeoGebra
New Resources
畫出對稱圖形
判斷球體
兩位數除以一位數（一）
柱體建築師
拼砌四邊形
Discover Resources
有趣
小時鐘
Archimedean spiral
S5 chauyy
三角波傅立葉級數&有效值
Discover Topics
Pythagoras or Pythagorean Theorem
Rotation
Parametric Curves
Ratios
Cube