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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
【案例】2018年全国1卷理科12题
畫出對稱圖形
GeoGebra笔记功能体验课件
兩組對邊相等的四邊形
三位數除以一位數(一)
Discover Resources
三角形面積.Area of Triangle
角内切圆
探究平行四邊形面積(2)
Tangent from an external point
正方体的三视图
Discover Topics
Differential Equation
Mode
Parallelogram
Random Variables
Trapezoid