Theodosius <Bithynius>; Clavius, Christoph
,
Theodosii Tripolitae Sphaericorum libri tres
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los _BAC, DAC,_ æqualia, vtrumque vtrique, & </
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_DC,_ æqualia inter ſe ſunt, neque reliqui anguli _BAC, DAC,_ vt manifeſturn eſt.
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<
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<
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">_HINC_ perſpicuum quoque eſt, copernicũ hallucinari lib. </
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<
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colai Co-
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pernici.</
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poſ. </
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<
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<
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fuerint, cum aliquo latere, datorum effici angulorum, & </
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<
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gulo _ABC,_ etiamſi dentur duo anguli _B, C,_ cum duobus lateribus _AB, AC,_ (& </
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cum vnotantum, vtipſe vult) non tamen ſtatim reliquum latus, & </
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<
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lus cognoſcetur; </
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<
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lus vel _BAC,_ vel _DAC,_ &</
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quus angulus, cum reliquis lateribus cognoſcatur, vt in ſcholio propoſ. </
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<
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angulum vni angulo æqualem habeant, & </
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tera duobus lateribus circa alium angulum æqua-
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lia vtrumque vtrique, atq; </
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angulorum vel maiorem recto, vel minorem: </
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& </
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anguli reliquis angulis æquales, vterque vtrique.</
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<
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& </
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circa angulos C, F, & </
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quorum A, D, vel minor ſit, vel maior recto.
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que eſſe, & </
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liquis duobus angulis D, F, vtrũq; </
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Si enim latera AB, DE, æqualia non ſunt,
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ſit AB, maius, & </
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æqualis arcui DE, & </
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cus circuli maximi ducatur CH. </
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tur latera BG, BC, æqualia ſunt lateribus
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ED, EF, angulosque comprehendunt æquales B, E; </
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& </
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qualis igitur erit quoque arcus GC, eidem arcui AC; </
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& </
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ctis, erunt queque duo anguli BGC, & </
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de, cum angulus BGC, oſtenſus ſit æqualis angulo D, erunt & </
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D, & </
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minor recto ponatur, vel maior, erunt ambo ſimul vel duobus rectis minores,
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vel maiores. </
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