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Polygonal Number 多邊形數
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
Poorly Drawn Parallelograms 2
Parallelograms: Quick Investigation
Icosahedron1
Quiz: Finding Average Rate of Change
Tutorial: Create lists of numbers and objects
Discover Resources
Diagonal Problem
Paralelogram.
distance formula
Congruent Triangles:Proofs
Slope Triangle Rotation (VB)
Discover Topics
Mode
Circumcircle or Circumscribed Circle
Cuboid
Rectangle
Quadratic Equations