SOLUTION: an octagon has 8 sides. How many diagnals does an octagon have?? my answer is 28 diagnals.

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Question 241104: an octagon has 8 sides. How many diagnals does an octagon have??
my answer is 28 diagnals.
Answer by edjones(7311) About Me  (Show Source):
You can put this solution on YOUR website!
20
There are 5 diagonals for each point. 8*5=40.
Half are repetitions. 40/2=20
.
Ed