How many diagonals does a regular seven-sided polygon contain?

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- Feb 1st 2010, 02:53 PMsri340polygon
How many diagonals does a regular seven-sided polygon contain?

- Feb 1st 2010, 09:28 PMSoroban
Hello, sri340!

Quote:

How many diagonals does a regular seven-sided polygon contain?

Take the 7 vertices, 2 at a time: .

- Feb 2nd 2010, 09:19 AMOpalg