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大邊對大角
Author:
tan90t
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
第八周作业
拼砌四邊形
找出對稱軸
Discover Resources
第三冊2-2習題12
三角形的內心
指數_1
圆在多边形上滚动
gmy106a11 轉移矩陣
Discover Topics
Geometry
Orthocenter
Tree Diagrams
Reflection
Circumcircle or Circumscribed Circle