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angle0428
Author:
user22519
Topic:
Angles
GeoGebra
New Resources
双心四边形
直線的斜率
垂直線的斜率
折扣
常见四边形是否是双心四边形
Discover Resources
同心多邊形
七巧板（tangram）的副本
Magic Matches
走进图形世界
榔头和它的展开图
Discover Topics
Constructions
Pythagoras or Pythagorean Theorem
Polynomial Functions
Integers
Solids or 3D Shapes