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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
兩組對邊相等的四邊形
近似值：有效數字
兩位數除以一位數（一）
異分母分數減法
判斷球體
Discover Resources
二次函數圖形的描繪
Catenoid
優良作品8(宜庭)
均分除法（分數÷整數）
P6_生趣課_繡曲線
Discover Topics
Derivative
Algebra
Standard Deviation
Hypothesis Testing
Circumcircle or Circumscribed Circle