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Petr–Douglas–Neumann
Author:
Ron van den Burg
Topic:
Geometry
GeoGebra
New Resources
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Poorly Drawn Parallelograms 3
Variation Theory Parallelogram Proofs
Dodecahedron
Average Rate of Change: Graph a Function (2)
Discover Resources
Practice Rockstar
Clowning Around
חלוקת השטחים - לשיעור היפני
Untitled
parallel lines and perpendicular lines
Discover Topics
Linear Programming or Linear Optimization
Numbers
Tangent Line or Tangent
Similar Triangles
Incircle or Inscribed Circle