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圆内接及外切正多边形
Author:
张书真
Topic:
Geometry
GeoGebra
New Resources
异形操场
直線的斜率：水平變化 & 鉛垂變化
常见四边形是否是双心四边形
折扣
龙形曲线-分形龙
Discover Resources
圓錐切球
Ex5C#14
多邊形面積(新一代第三版 EX22#8)
中國火柴遊戲一
算盘
Discover Topics
Reflection
Piecewise Functions
Constructions
Scalene Triangles
Quadrilaterals