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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
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
三位數除以一位數（二）
近似值：有效數字
Discover Resources
Incentre
平面向量
Locus (Two points 2)
地方第三方第三方第三方
y=Asin(wx+f)图像变换
Discover Topics
Planes
Solids or 3D Shapes
Exponent
Similarity Transformation or Similarity
Congruence