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A polygon has 20 sides how many diagonals does it have
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5 votes
A polygon has 20 sides how many diagonals does it have

User John Zumbrum
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5.7k points

1 Answer

4 votes

Answer:

170

Explanation:

n(n-3)/2

20(20–3)/2 = 170

User Hiro
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5.4k points
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