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初犯九點圓
Author:
XIE Yuheng
Topic:
Geometry
九點圓
GeoGebra
New Resources
拼砌四邊形
【案例】2013年安徽高考15题
柱體建築師
【案例】2018年全国1卷理科12题
兩組對邊相等和有直角的四邊形
Discover Resources
Time
tanx & cotx
最短距離
活化斥引力 能 夫婦 給 蓄影
Tangent of a Circle 圓的切線
Discover Topics
Algebra
Trapezium
Optimization Problems
Curve Sketching
Statistical Characteristics