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固定周界的長方形面積變化
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Perimeter
,
Square
GeoGebra
New Resources
兩位數除以一位數（一）
sanjiaohanshu
三位數除以一位數（一）
近似值：有效數字
兩位數加法
Discover Resources
畢氏樹
Time
鏡射再旋轉
动态三角形
音調與空氣柱
Discover Topics
Intersection
Straight Lines
Secant Line or Secant
Linear Equations
Parametric Curves