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劉虹圻 垂心
Author:
呂麗珠
Topic:
Orthocenter
GeoGebra
New Resources
四邉形 (四年級) 教師版
球体的体积推导（优化版）
【案例】2018年全国1卷理科12题
錐體建築師
兩組對邊相等的四邊形
Discover Resources
binary number system
判斷柱體11
Untitled1
教學－直線方程性質
複合圖形(二)
Discover Topics
Scalene Triangles
Circumcircle or Circumscribed Circle
Congruence
Root
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