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厚會聚透鏡 Thick Convergent Lens
Author:
W.L. Wong, Albert
GeoGebra
New Resources
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
拼砌四邊形
找出對稱軸
Discover Resources
柱體建築師 2
比較小數的大小
LA 空間中的直線
用GeoGebra試算表模擬牛牛頓法x3
Test
Discover Topics
Multiplication
Geometric Transformations
Incircle or Inscribed Circle
Trapezium
Special Points