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?

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) (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

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