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What's the perimeter of a regular heptagon if one side measures 3 inches?

User SetiSeeker
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A **regular** heptagon is a seven-sided polygon with equal interior angles and congruent sides.

Since all side lengths are congruent, the perimeter is 7 times the length or one side, or
perimeter = 3*7 = 21 inches.
User Will Sargent
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