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PMC 2012-13 Q1
Author:
Arthur Lee
題目一
GeoGebra
New Resources
Poorly Drawn Parallelograms 3
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Parallelograms: Quick Investigation
Dodecahedron
Tutorial: Create lists of numbers and objects
Discover Resources
graph one
jnun
Asymmetric propeller, XXI century
Steven Tran Period 2
Diameters & Chords I (VA)
Discover Topics
Rotation
Division
Quadrilaterals
Constructions
Variance