SOLUTION: I drew the pentagon and not sure if I found all the triangles, I found 20 is this right or are there more. Heres the question. Thanks for your help. Draw a pentagon with each of

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Question 129203: I drew the pentagon and not sure if I found all the triangles, I found 20 is this right or are there more. Heres the question. Thanks for your help.
Draw a pentagon with each of its five diagonals. How many triangles are contained in the figure?

Answer by MathLover1(20849)   (Show Source): You can put this solution on YOUR website!
The number of in a polygon is:
you have a pentagon, then
so,



The number of (when you draw all the diagonals from ) in a polygon is:
the number of


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