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正n边形内的旋转三角形
Author:
arist
GeoGebra
New Resources
第八周作业2
平行線的判定
正方形雪花图案
异形操场
第八周作业3
Discover Resources
regular hexagon construction
生活中的平面圖形─多邊形的性質
ghseh 二次函數描點法頂點法-2
somacube
伽利略比值II (Alfinio Flores & Hugh A. Sanders)
Discover Topics
Equilateral Triangles
LCM and GCD
General Quadrilateral
Similar Triangles
Tangent Line or Tangent