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題 2
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
計算下圖的面積。
GeoGebra
New Resources
四邊形的特性
直角坐標平面上的旋轉變換
兩位數除以一位數（二）
找出對稱軸
錐體建築師
Discover Resources
前景圖、背景圖
bkb-切割线定理
circle
與兩圓相切之圓心雙曲線軌跡
数学之美
Discover Topics
Rotation
Logarithm
Natural Numbers
Square
Planes