SOLUTION: A polygon is such that when all diagonals from one vertex are drawn, eleven triangles are formed. How many sides does the polygon have?

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Question 822224: A polygon is such that when all diagonals from one vertex are drawn, eleven triangles are formed. How many sides does the polygon have?
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!


Answer: The polygon has 13 sides, because 2 of the 13 line 
segments from that vertex are not diagonals, but sides of 
the polygon, so there are 11 diagonals drawn from that point,
creating 11 triangles.

Edwin