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長方形和正方形的面積_題A至E
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Rectangle
,
Square
GeoGebra
New Resources
兩位數加法
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等的四邊形
画直线等分三角形的面积
Discover Resources
等腰三角形內嵌矩形
http://www.qsir.org/?p=8853
B4 4-1 平行線性質延伸 等積變換
电场线模拟
垂直線的斜率
Discover Topics
Angles
Prism
Similar Triangles
Quadratic Functions
Geometric Transformations