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題 6
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
計算下圖的面積。
GeoGebra
New Resources
拼砌四邊形
四邉形 (四年級) 教師版
三位數除以一位數（一）
sanjiaohanshu
三位數除以一位數（二）
Discover Resources
平行四邊形與菱形的分別
異分母的分數加減
银币
DSE Circle-ACT03B Relationship Between Chords and Angles at Centre
餘弦公式2
Discover Topics
Coordinates
Arithmetic
Right Triangles
Expected Value
Set Theory