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quadrilaterals 2
Author:
iedc
GeoGebra
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【案例】2018年全国1卷理科12题
小数 的副本
畫出對稱圖形
柱體建築師
算柱 (兩位數)
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分線比值
平移
平面幾何的思考
求一數是另一數的幾分之幾?
橢圓3--平行四邊形法
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Quadratic Equations
Continuity
Multiplication
Limits
Upper and Lower Sum or Riemann Sum