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Using a Cheshire to Collimate a Newtonian
Author:
John Reed
Topic:
Geometry
GeoGebra
New Resources
Cross Product in 2D and 3D
Isosceles Triangle: Quick Construction
Rotating Points (Optical Illusion)
Parallel or Not? (V2)
Angles and Intersecting Lines: Quick Investigation
Discover Resources
Angular velocity
Animation 68
Desargues' Theorem
PCK Probes or Measures
Cool Pyramid Design
Discover Topics
Prism
Tree Diagrams
Circumcircle or Circumscribed Circle
Isosceles Triangles
Indefinite Integral