Cavalieri, Buonaventura
,
Geometria indivisibilibvs continvorvm : noua quadam ratione promota
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LIBER V.
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ne hyperbolæ, BAD, bafi rectangulo ſub, BD, FY, adparallele-
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pipedum ſub eadem altitudine baſi quadrato, BD: </
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<
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quadrata hyperbolæ, BAD, ad omnia rectangula hyperbolę, HM
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Q, ſimilia rectangulo ſub, HQ, EN, habent rationem compofitã
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ex ratione rectanguli ſub, VC, XP, ad rectangulum ſub, RP, GC,
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& </
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<
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<
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to, BD, ad parallelepipedum ſub altitudine hyperbolæ, HMQ,
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bafi rectangulo ſub, HQ, EN, ergo, ex æquo, omnia rectangula
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hyperbolæ, BAD, ſimilia rectangulo ſub, BD, FY, regula, BD, ad
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omnia rectangula hyperbolæ, HMQ, ſimilia rectangulo ſub, HQ,
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EN, regula, HQ, habebunt rationem compoſitam ex ratione re-
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ctanguli, ſub, VC, XP, ad rectangulum ſub, RP, GC, & </
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<
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ne parallelepipedi ſub altitudine hyperbolæ, BAD, baſi rectangu-
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lo ſub, BD, FY, ad parallelepipedum ſub eadem altitudine, & </
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<
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quadrato, BD, & </
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<
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">ex ratione huius parallelepipedi ad parallelepi-
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pedum ſub altitudine hyperbolę, HMQ, baſi rectangulo ſub, HQ,
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EN; </
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<
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">compoſitã ex ratione parallelepipedi ſub altitudine hy-
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perbolę, ABD, baſi rectangulo ſub, BD, FY, ad parallelepipedum
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ſub altitudine hyperbolę, HMQ, baſi rectangulo ſub, HQ, EN,
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quę erant oſtend.</
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">SImilium hyperbolarum omnia quadrata, regulis ea-
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rum baſibus, ſunt in tripla ratione axium, vel diame-
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trorum earundem.</
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<
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">Sint ſimiles hyperbolæ, BAD, HMQ, earum latera tranſuerſa,
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GA, XM, quorum ſint ſexquialteræ, AV, MR, in directum axi-
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bus, vel diametris, AC, MP, baſes, & </
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<
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co omnia quadrata hyperbolæ, BAD, ad omnia quadrata hyper-
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bolæ, HMQ, eſſe in tripla ratione eius, quam habet, AC, ad, M
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P, iungantur, BA, AD, HM, MQ. </
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Apoll. 6.
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Con.</
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ſunt ſimiles baſis, BD, ad, CA, erit vt baſis, HQ, ad, PM, & </
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anguli in clinationis, AC, ad, BD, & </
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">MP, ad, HQ, inter ſe æqua-
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les, ergo triangula, BAD, HMQ, ſunt ſimilia, & </
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</
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<
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">drata eorundem, regulis ijſdem, erunt inter ſe in triplaratione la-
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terum homologorum .</
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<
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<
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">eius, quam habet, BD, ad, HQ, vel, AC,
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ad, MP; </
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<
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">quia verò quadratum, BC, ad rectangulum, GCA, eſt vt
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hyperbolæ, BAD, rectum latus ad tranſuerſum .</
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l. 2.</
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ad tranſuerſum hyperbolæ, HMQ, quia ille ſunt ſimiles .</
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