\"\"

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The given polygon is a hectagon.

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For a convex hectagon, \"\".

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The sum of the measures of the interior angles of a convex n-gon is \"\"

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\"\"          (Substitute 7 for n)

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\"\"                   (Subtract: \"\")

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\"\"                        (Multiply: \"\") \"\"

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The sum of the measures of the interior angles of a convex hectagon is \"\".