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Pythagorean Theorem Proof: Shearing
Author:
Patrick Huang
GeoGebra
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畫出對稱圖形
兩組對邊相等的四邊形
直角坐標平面上的旋轉變換
【案例】2013年安徽高考15题
找出對稱軸
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Primary Mathematics
Task4
直徑式的原理
f(x)=ax^2
角度、弧度互換
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Plane Figures or Shapes
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Quadratic Equations