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畫蛇添福
Author:
李春培
畫蛇添福
GeoGebra
New Resources
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
兩組對邊相等的四邊形
柱體建築師
Discover Resources
照片方塊
斜射光三角量測
平分圓周1
Copy of 劉徽的「割圓術」
congruent triangles_provided by Mr Yeung Kar Chun
Discover Topics
Frequency Distribution
Arithmetic Operations
General Quadrilateral
Straight Lines
Probability