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4-矩形折叠（翻折问题）
Author:
龚洪萍
Topic:
Congruence
,
Geometry
GeoGebra
New Resources
兩組對邊相等的四邊形
國旗 (Claude 版)
四邊形的特性
第八周作业
長方體平面投影 (Codex版)
Discover Resources
方格紙上畫平行四邊形4
Quiz on Polar Coordinates (2) 極坐標測驗2
給錐體一個名字 3
七巧板
認識半徑
Discover Topics
Linear Equations
Parabola
Circumcircle or Circumscribed Circle
Functions
Tangent Function