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斐波那契螺旋弧线（表格法-可动态调节）
Author:
孟宝兴
GeoGebra
New Resources
【案例】2018年全国1卷理科12题
柱體建築師
三位數除以一位數（一）
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
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圓圓求切圓
學習單：三角形任一外角與內角關係
平行四邊形
正三角形沿正方形旋轉
anlge at centre twice angle at circumference
Discover Topics
Volume
Vectors 2D (Two-Dimensional)
Differential Equation
Rational Numbers
Rectangle