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平行四邊形的副本
Author:
Mrchan0219
,
Hin Chan
平行四邊形的高和底
GeoGebra
New Resources
第八周作业
畫出對稱圖形
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
Discover Resources
二項分佈
分段函數
GGB2
-1 ≤ cosA cosB cosC ≤ 1/8
活动三：应用性质
Discover Topics
Vectors 3D (Three-Dimensional)
Kite
Natural Numbers
Secant Line or Secant
Rhombus