Cavalieri, Buonaventura
,
Geometria indivisibilibvs continvorvm : noua quadam ratione promota
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ſunt vt quadratum, VR, ad quadratum, CR, .</
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">Ex 40. l. 1.
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& eiuidẽ
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Scholio.</
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AOD, vel quadratum, AO, ad rectangulum, DRA, omnia au-
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tem quadrata parallelogrammi, BR, ad omnia quadrata ſemipor-
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http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/05TCTFNR/figures/0224-01
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tionis, ICRM, ſunt vt rectangulum, D
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RA, ad rectangulum ſub, DR, & </
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compoſita ex, {1/2}, RM, & </
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cum rectangulo ſub, RM, & </
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poſita ex, {1/6}, RM, &</
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<
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">, {1/2}, MA, ergo ex
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æquali omnia quadrata parallelogram-
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mi, GR, ad omnia quadrata ſemiportio-
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nis, ICRM, vel omnia quadrata paral-
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lelogrammi, GX, ad omnia quadrata
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portionis, ICFS, erunt vt quadratum,
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AO, ad rectangulum ſub, DR, & </
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ex, MA, vna cum rectangulo ſub, RM, & </
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">Ex 9. & B.
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Cor. 22.
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lib. 2.</
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M, &</
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<
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ſit circa axim, vel diametrum, MR, quod erat oſtendendum.</
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">SI in circulo, vel ellipſi ducantur coniugati axes, vel dia-
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metri, in altera autem eorundem ſit tamquam in baſi pa-
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rallelogrammum circa eundem axim, vel diametrum cum cir-
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culo, vel ellipſi, circa quæm ſit etiam triangulus, ſed in baſi
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oppoſita baſi parallelogrammi, ſumatur autem in dicta axi,
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vel diametro vtcunq; </
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tur parallela; </
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<
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">quadratum eiuſdem parallelæ trianguli lateri-
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bus interceptæ æquabitur reliquo quadrati eius, quæ inter-
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cipitur lateribus parallelogrammi, dempto quadrato eius,
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quæ intra circulum, vel ellipſim concludetur.</
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<
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tri, BH, DF, in altera autem earum, vtin, DF, tanquam in baſi,
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& </
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<
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">circa axim, vel diametrum, BE, ſit parallelogrammum, AF, cir-
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ca eundem verſo4;</
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">, ſed in baſi, AC, ſit triangulum, AEC, ſumatur
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autem in, BE, vtcunque punctum, M, per quodipſi, DF, agatur
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parallela, VR, ſecans curuam, DBF, in, T, I, & </
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AEC, in, S, N. </
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">Dico ergo quadratum, SN, æquari reliquo qua-
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drati, VR, dempto quadrato, TI. </
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rectangulum, HMB, eſt vt quadratum, FE, vel quadratum, </
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