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4-矩形折叠（翻折问题）
Author:
龚洪萍
Topic:
Congruence
,
Geometry
GeoGebra
New Resources
Claude 解幾何題
Fibonacci Clock
球體建築師
AI 訓練教室
國旗 (作圖步驟直接餵給 Claude)
Discover Resources
半圓柱
rectangle_tktcps
外资知名
圓與直線距離
同心多邊形
Discover Topics
Perimeter
Expected Value
Probability
Interest Calculation
Indefinite Integral