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固定面積的圖形周界變化
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Perimeter
,
Square
GeoGebra
New Resources
直角坐標平面上的旋轉變換
找出對稱軸
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
兩位數除以一位數（二）
Discover Resources
曲線下面積
乘法表的自动练习
分割平行四邊形長方形
編織圓
函数
Discover Topics
Trapezoid
LCM and GCD
Normal Distribution
Sine
Intersection