From Wikipedia, the free encyclopedia
Trigonometrio (de Greka trigonon = "triangulo" e metro =" mezuro") esas la matematika cienco qua traktas di raporti pri disti et di anguli en la trianguli, note trianguli kun orto (90º) angulo.
L'origini di trigonometrio trasis de la kulturi di aciena Grekia.
Fondero di la trigonometrio: astronomo Hiparko de Nicea (unesma tabeli) ;
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