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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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近似值：有效數字
柱體建築師
算柱 (兩位數)
判斷球體
兩組對邊相等的四邊形
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動態角=30
生活中的平面圖形關係─線對稱
七巧板
面積
等腰三角形求角度
Discover Topics
Division
Standard Deviation
Upper and Lower Sum or Riemann Sum
Root
Planes