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題 4
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Polygons
計算下圖的面積。
GeoGebra
New Resources
畫出對稱圖形
拼砌四邊形
錐體建築師
四邉形 (四年級) 教師版
三位數除以一位數（一）
Discover Resources
到原點的距離為整數值
笛卡兒心臟線
畢氏定理
颱風暴風圈
圆柱侧面展开图
Discover Topics
Upper and Lower Sum or Riemann Sum
Dilation
Right Triangles
Surface
Line Segment