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固定面積的圖形周界變化
Author:
phcheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
画直线等分三角形的面积
【案例】2013年安徽高考15题
拼砌四邊形
畫出對稱圖形
三位數除以一位數（二）
Discover Resources
三角形
直線上的鄰角_1
课前热身
販賣部草圖
circle
Discover Topics
Reflection
Frequency Distribution
Line Segment
Distributions
Integral Calculus