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Merry Christmas 2014
作者：
Lamberto Lamberti
Merry Christmas !
GeoGebra
最新資源
Building Figures with Set Areas
Regular Polygons and Equivalent Triangles
Focus and Directrix
רישום חופשי
Perimeter of Rectangle
探索資源
Terminal Arm
more exterior
Circling Point Curve
Naming Angles
ორწახნაგა კუთხე
探索主題
黎曼和（Riemann Sum）
正弦
多邊形
球形
Pythagoras or Pythagorean Theorem