Poligon: Perbedaan antara revisi

PolygonsPoligon havetelah beendikenal knownsejak sincezaman ancient timesdahulu. The [[regular polygon]]s werePoligon knownreguler todiketahui theorang ancientYunani Greekskuno, and the [[pentagram]], a non-convex regular polygon ([[star polygon]]), appears on the vase of Aristophonus, Caere, dated to the 7th century B.C.{{Citation needed|date=February 2009}} Non-convex polygons in general were not systematically studied until the 14th century by Thomas Bradwardine.<ref>Coxeter, H.S.M.; ''Regular Polytopes'', 3rd Edn, Dover (pbk), 1973, p.114</ref>