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題一
Author:
lan
,
GeoGebra Institute of Hong Kong
Topic:
Area
GeoGebra
GeoGebra
New Resources
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
三位數除以一位數（二）
第八周作业
Discover Resources
YH的GGB_BOOK
地球儀5
平行六面體
Copy of 球面
運用量角器量度以下角度
Discover Topics
Angles
Parabola
Prism
Hyperbola
Distributions