Theodosius <Bithynius>; Clavius, Christoph
,
Theodosii Tripolitae Sphaericorum libri tres
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rum A B C, D E F, in pun-
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cta A, D: </
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tingere poteſt, quando ſe-
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gmenta A G C, D H F, ſe-
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micirculo ſunt maiora. </
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<
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ctis igitur rectis A B, D E,
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erũt anguli G A B, H D E,
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recti, ex defin. </
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clid. </
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lia erunt quadrata rectarũ
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G A, A B, quadratis recta-
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rum H D, D E: </
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quadrata ex G A, H D, æ-
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qualia, quòd & </
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<
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H D, æquales ſint, ob æqua
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les arcus A G, D H. </
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& </
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qualia erunt; </
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& </
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æquales erunt. </
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poſitum. </
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ſegmenta ad angulos rectos inſiſtant, &</
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lia ſegmenta circulorum erigantur, & </
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gmentis æquales circunferentiæ ad extremitates
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ſegmentorum deſumantur minores dimidijs ip-
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ſorum partibus, ab ipſis autem circulis æquales
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circunferentiæ ſumantur ad eaſdem partes, quæ
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ſunt ad extremitates diametrorum, rectæ lineæ
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ductæ à punctis in circunferentijs ſegmentorum
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ad puncta in circunferentijs circulorum, erunt
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æquales.</
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">REPETANTVR figuræ propoſition is præcedentis, cum eiſdẽ con-
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ſtructionibus, ponanturq́; </
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æquales eſſe. </
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