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固定周界長方形的面積變化（二）
Author:
Anthony OR 柯志明
,
GeoGebra Institute of Hong Kong
Topic:
Area
GeoGebra
New Resources
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
Nested spiral octagon
美國國旗 (Claude 版)
Fibonacci Clock
Discover Resources
平行四邊形有甚麼特性？
截面法體積(1)
Fermat's Spiral
[洋葱] 四边形与旋转变换
圖四的副本
Discover Topics
Perimeter
Plane Figures or Shapes
Planes
Functions
Hyperbola