1. EnneadecagonIn geometry, an enneadecagon is a polygon with 19 sides and angles. It is also known as an enneakaidecagon or a nonadecagon. The radius of the circumcircle of the regular enneadecagon with side length t is (angle in degrees) The area of a regular enneadecagon, where t is the edge length, is
Read “Enneadecagon” on English Wikipedia
Read “十九角形” on Japanese Wikipedia
Read “Enneadecagon” on DBpedia
Read “Enneadecagon” on English Wikipedia
Read “十九角形” on Japanese Wikipedia
Read “Enneadecagon” on DBpedia
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