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anlge at centre twice angle at circumference
Author:
lamyc
GeoGebra
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祖冲之的期望：内棋与外棋
平行線的斜率
漂亮的摇摆曲线
第八周作业
【案例】2013年安徽高考15题
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由組織圖到頻數多邊形
觀察圖中有哪些角會相等
ex 5
範例二
拋物線2--焦點法
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Angles
Linear Functions
Similar Triangles
Power Functions
Polygons