Zellige 970+964
Un nonagono con 9 triangoli isosceli di angolo 100° forma un ennagramma ottuso {9/2}.
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Zellige 970+964
Un nonagono con 9 triangoli isosceli di angolo 100° forma un ennagramma ottuso {9/2}.
Zellige 502z - Ennagramma Ottuso {9/2}
Un ennagramma ottuso è la forma di un poligono a stella a 9 punte, costruito collegando i 9 vertici del nonagono, saltandone 1.