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認識正方形
Author:
fifi6713
Topic:
Square
認識正方形
GeoGebra
New Resources
sanjiaohanshu
找出對稱軸
近似值：有效數字
拼砌四邊形
直角坐標平面上的旋轉變換
Discover Resources
直角三角形的三角比
軌跡觀察---三圓上三角形重心
矩形等距曲線
構作對稱圖形_FK1
C60足球模型展开（双色版）
Discover Topics
Orthocenter
Cosine
Tangent Line or Tangent
Functions
Trigonometry