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題 8
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
球体的体积推导
兩位數除以一位數（二）
四邉形 (四年級) 教師版
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封閉區域著色２
勝者即正義，可愛即正義~
circle
F4_Ch9.1 任意角的三角比
長方形的周界與長和闊的關係 (教師版)
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Triangles
Rectangle
Plane Figures or Shapes
Fractions
Planes