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勾股定理：射影无字证明
Author:
math Ku
Topic:
Geometry
,
Pythagoras or Pythagorean Theorem
GeoGebra
New Resources
兩位數除以一位數（二）
找出對稱軸
画直线等分三角形的面积
四邉形 (四年級) 教師版
拼砌四邊形
Discover Resources
GGB小組演示作業範例2
鋪磁磚練習
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
P5三角形的面積
there phase Vector
Discover Topics
Curve Sketching
Circumcircle or Circumscribed Circle
Constructions
Combinatorics
Angles