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題七
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
GeoGebra
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兩位數除以一位數（一）
算柱 (兩位數)
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
近似值：有效數字
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線性組合3：正方形
gjh-a02-hippocrates 月牙
Copy of 固定周界的長方形的面積變化
正三角疊代
算幾不等式
Discover Topics
Intersection
Perimeter
Fractal Geometry
Trigonometry
Polygons