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The Law of Reflection with Fermat's Principle
Author:
David Canham
Topic:
Reflection
Find the fastest path from Point C to Point D! Only one rule: You have to touch the blue surface on the way!
GeoGebra
New Resources
Ellipse as Envelope - Correspondence Method
Ellipse, Hyperbola and Circle as Envelopes
Teorema Japonês para quadriláteros inscritos em uma circunferência
"Compressed" Astroid as Envelope
Pelecoid
Discover Resources
bhhh
Slovak GeoGebra Institute
Angles in a Semicircle
James perp
Cosecant Function
Discover Topics
Tangent Line or Tangent
Continuity
Conic Sections
Probability
Complex Numbers