Mathematics Education
EMAT 6600, J. Wilson

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Problem: Count the Triangles -- I

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Count the triangles. Extend the sequence.





Hints/Solution:

What is the pattern?

Can you write the formula for n lines from each base vertex?

Can you prove the general formula? What is there to prove?

Comments:

Candidate for mathematical induction?

Extensions/Variations:


Reference: Can You Solve These , Series #1, by David Wells