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題三
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
異分母分數減法
兩位數除以一位數（一）
畫出對稱圖形
球體建築師
Discover Resources
三角形
UpdateConstruction
柯西不等式 (4)
十六菊
Copy of 正多边形内接迭代
Discover Topics
Kite
Logarithm
Equations
Set Theory
Linear Programming or Linear Optimization