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正弦定理的验证
Author:
junfeilx
GeoGebra
New Resources
三位數除以一位數（二）
【案例】2018年全国1卷理科12题
算柱 (兩位數)
兩組對邊相等的四邊形
【案例】2013年安徽高考15题
Discover Resources
題 4
平行四邊形面積
不規則圖形的周界(intro Square)
圆形磁场
圓錐曲線Conic Section
Discover Topics
Conic Sections
Boxplot
Rhombus
Hypothesis Testing
Circumcircle or Circumscribed Circle