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ie 3
Author:
LAM YU SANG
GeoGebra
New Resources
球體建築師
兩組對邊相等的四邊形
柱體建築師
画直线等分三角形的面积
兩位數除以一位數（一）
Discover Resources
判斷柱體 2
生活中的平面圖形問題2
Transformation of Functions
congruent (AAA)
面積與周界活動
Discover Topics
Area
Cube
Percentages
Right Triangles
Polygons