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根據百分率找數量（二）: 例3
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
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近似值：有效數字
畫出對稱圖形
國旗 (作圖步驟直接餵給 Claude)
兩組對邊相等的四邊形
算柱 (兩位數)
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echen say
以「時」和「分」報時
空間坐標
複利計算(1)
圖四的副本
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Trigonometry
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Right Triangles
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