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Tangent perpendicular to radius
Author:
Big Lee
GeoGebra
New Resources
拼砌四邊形
【案例】2018年全国1卷理科12题
第八周作业
柱體建築師
兩組對邊相等和有直角的四邊形
Discover Resources
定周长的正多边形面积变化规律（含圆）
Copy of fluid mechanics
Congruent Triangle (SSS)
除法Q4
基础知识
Discover Topics
Inequalities
Trapezoid
Geometric Distribution
Square
Isosceles Triangles