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Q5-7
Author:
Ziv SFAC
GeoGebra
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兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
畫出對稱圖形
兩位數除以一位數（一）
三位數除以一位數（二）
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根據百分率找數量（一）: 例3
三角函數
斜坐標
銳角三角：tan
分數與百分數的分別
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Rotation
Tangent Line or Tangent
Hypergeometric Distribution
Linear Functions
Rational Numbers