Dissecting One Equilateral Triangle into Seven

Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
This Demonstration shows Collison's dissection of an equilateral triangle into seven smaller equilateral triangles.
Contributed by: Izidor Hafner (August 2013)
Open content licensed under CC BY-NC-SA
Snapshots
Details
Reference
[1] G. N. Frederickson, Dissections: Plane & Fancy, New York: Cambridge University Press, 1997 p. 56. www.cs.purdue.edu/homes/gnf/book.html.
Permanent Citation
"Dissecting One Equilateral Triangle into Seven"
http://demonstrations.wolfram.com/DissectingOneEquilateralTriangleIntoSeven/
Wolfram Demonstrations Project
Published: August 12 2013