SOLUTION: How many triangles can a regular 20-gon be divided into ? 10 or 20 ? Thank you
Algebra.Com
Question 584950: How many triangles can a regular 20-gon be divided into ? 10 or 20 ? Thank you
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
An 
-gon can be divided into 
triangles. Neither 10 nor 20 is the correct answer for an icosagon.
John
My calculator said it, I believe it, that settles it
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