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紙盒人
Author:
Francese
GeoGebra
New Resources
多邊形的面積
祖冲之的期望：内棋与外棋
垂直線的斜率
斜率的值
漂亮的摇摆曲线
Discover Resources
四心的變化II
二元一次方程式 1
圆锥的侧面展开图3D动画的副本
微信公众号“sx880A8”第706期中非国旗（Central African Republic）
尺规作图得到黄金三角形和黄金矩形
Discover Topics
Parallelogram
Vectors 3D (Three-Dimensional)
Equilateral Triangles
Trapezoid
Reflection