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矩形折叠(翻折问题)
Author:
浅蓝色
GeoGebra
New Resources
常见四边形是否是双心四边形
撒针估算面积实验
科氏力 (Coriolis Force)
三角函数 的副本
双心四边形
Discover Resources
Math
固定軌跡問題
對鄰邊之對
"拈" 類遊戲之一-搶21遊戲 The 21 game
勒洛四面体(拼接法)
Discover Topics
Statistics
Addition
Equilateral Triangles
Rectangle
Hyperbola