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Drag the red dots, see the area ratio of EHFG to ABCD
Author:
johnmayhk
GeoGebra
New Resources
三位數除以一位數（二）
球體建築師
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
拼砌四邊形
Discover Resources
扇形面積
橢圓軌跡
Copy of 分數比較
螺旋正方形
迭代多边形;平移;向量
Discover Topics
Stochastic Process or Random Process
Cube
Pie Chart or Circle Chart
Power Functions
Triangles