Geometriae Rotvndi Libri XIIII.

æqua æquales æqualibus æqualium æquantur angu anguli angulorum angulus baſi baſis calculus canone centro centrum circuli circulus complementi crure cruris crurum crus cujus data datæ datis dato datur decanguli diameter diametri diametrum Dico differentia duæ elementi elementum erit eſſe eſt Eſto Euclides fabrica fint finum finus funt geodæſia Geometria guli hæc hinc hoceſt hujus infcripta itaq latera latus major majus menfura minor nempe periphe peripheria perpendicularis poteſt proinde proportionales puncto quadrans quadrante quadrantis quadrato quadratum quæ Quæritur Quare quinquanguli radii radio radius ratio recta rectæ rectangulo rectè recti reliqui reliquum rurfus ſcilicet ſecans ſecantem ſecat ſectionis ſed ſegmenta ſegmentum ſemicirculi ſemiſsis ſexanguli ſic ſint ſinum ſinum arcus ſinus ſit ſphæræ ſunt tamen tangens tangentem termino theſi trianguli triangulum viſus