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Petr–Douglas–Neumann
Author:
Ron van den Burg
Topic:
Geometry
GeoGebra
New Resources
Sphere on a Grid
Dissections by Guillermo Bautista
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Dodecahedron
Poorly Drawn Parallelograms
Discover Resources
bearings and scale
Construction #1
Simultaneous equations
Rotation and Reflection
Project 5
Discover Topics
Cosine
Sequences and Series
Congruence
Cylinder
Statistics