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題 7
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
計算下圖的面積。
GeoGebra
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兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
算柱 (兩位數)
柱體建築師
異分母分數減法
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Sum of Exterior Angles of Polygons 多邊形外角和
進階一
圓錐截痕模型
函数作图工具的副本
三角形的外心
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Inequalities
Reflection
Differential Equation
Diagrams
Probability