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空間中兩向量夾角
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩組對邊相等的四邊形
拼砌四邊形
【案例】2013年安徽高考15题
判斷球體
兩位數除以一位數(一)
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Problem 1
多物件逐一移動,單一物件分段移動
內擺線觀察
劉徽的「割圓術」的副本
小游戏
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Trapezoid
Orthocenter
Rhombus
Rectangle
Equilateral Triangles