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正方形和長方形有甚麼特性？
Author:
Ken Cheung
,
Anthony OR 柯志明
Topic:
Rectangle
,
Square
Eng version:
http://ggbtu.be/m79823
GeoGebra
New Resources
異分母分數減法
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
判斷球體
拼砌四邊形
Discover Resources
到原點的距離為整數值
螢橋國中 陳虹璇
拋物線代數性質,光學性質
三角形的垂心（一）
圆面积和周长展开示意图
Discover Topics
Circumcircle or Circumscribed Circle
Pie Chart or Circle Chart
Scalene Triangles
Ratios
Parametric Curves