Theodosius <Bithynius>; Clavius, Christoph
,
Theodosii Tripolitae Sphaericorum libri tres
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modo, quoniam ſimiles ſunt arcus BN, Gk, erit BE, alteri polo propior ma-
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ior, quàm vt ſimilis ſit arcui Gk, ab eodem polo remotiori. </
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">Itaque ſi in ſphæ-
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ra maximus circulus aliquẽ circulum tangat, &</
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">FINIS LIBRI III. THEODOSII.</
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">POTERVNT, ſi placet, hæ duæ figuræ tribus illis propoſitionis
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ſecundæ lib. </
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ſpiciantur. </
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<
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">In prima namque harum figurarum ſegmentum inſiſtens
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AFB, eſt ſemicircu-
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lus, caditq́, perpendicu
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laris FL, intra ſegmen
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tum ADB: </
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riore autẽ eadem FL,
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in ipſam circunferen-
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tiam ADB, cadit,
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exiſtente eodem ſegmen
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to inſiſtente AFB, ſe-
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micirculo; </
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dum & </
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">in tertia figura dictæ propoſitionis idem ſegmentum inſiſtens
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AFB, ſemicirculus eſt, lineá perpendicularis FL, extra ſegmentum
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ADB, cadit. </
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