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5 squares
Author:
johnmayhk
GeoGebra
Purple points are mid-points of corresponding line segments. Drag blue points to change the size and orientation of squares. Are two red line segments perpendicular to each other always?
New Resources
算柱 (兩位數)
找出對稱軸
兩位數加法
四邊形的特性
球体的体积推导(优化版)
Discover Resources
四下_面積(一)(學生版)
parallelogram and squares
過圓內一點與圓相切的圓
分段函數作圖教學
圆内接与圆外切多边形
Discover Topics
Exponential Functions
Parabola
Expected Value
Sequences and Series
Geometric Distribution