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題 7
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
計算下圖的面積。
GeoGebra
New Resources
拼砌四邊形
找出對稱軸
兩組對邊相等和有直角的四邊形
球體建築師
兩位數除以一位數（一）
Discover Resources
Angles in the Circumference and the Centre
絕對值距離和
方格纸上画平行线和垂线
ie 1
我的第一个GGB绘本
Discover Topics
Pie Chart or Circle Chart
Reflection
Addition
Constructions
Translation