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廣義三角：sin, cos
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
【案例】2018年全国1卷理科12题
柱體建築師
找出對稱軸
Discover Resources
與園內切且外切的圓心軌跡方程式
In-centre
時鐘
圓柱截橫
S2 Angles Related to Rectilinear Figures
Discover Topics
Median Line
Variance
Calculus
Random Experiments
Trigonometry