# How Many Triangles Are There?

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Most of my students want to see the answer immediately. I decided to give them that and asked them to figure out systematically how to get the answer.

Contributed by: Abraham Gadalla (March 2011)

Open content licensed under CC BY-NC-SA

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"How Many Triangles Are There?"

http://demonstrations.wolfram.com/HowManyTrianglesAreThere/

Wolfram Demonstrations Project

Published: March 7 2011