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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?
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【案例】2013年安徽高考15题
GeoGebra笔记功能体验课件
兩位數除以一位數(二)
三位數除以一位數(二)
四邊形的特性
Discover Resources
三角形的外心與外接圓
面外一點
三心
鸚鵡螺旋線
拼數咭
Discover Topics
Tangent Function
Conditional Probability
Cosine
Hyperbola
Angles