Source: wikibot/heptagon
= Heptagon
{wiki=Heptagon}
A heptagon is a polygon that has seven sides and seven angles. The term "heptagon" comes from the Greek word "hepta," meaning seven. In a heptagon, the sum of the interior angles is 900 degrees, which can be calculated using the formula \\((n - 2) \\times 180\\), where \\(n\\) is the number of sides. Heptagons can be regular or irregular.