Cavalieri, Buonaventura, Geometria indivisibilibvs continvorvm : noua quadam ratione promota

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499479LIBER VI.336[Figure 336] noides 63: conus 42. apex para-
11Corol. 10.
51. l. 4. ſec.
poſterior.
bolicus 21.
apex ſphæralis 12.
vnde patet hæmiſphęrium, vel
hæmiſphæroides ſexquitertium
22Coroll. 1.
51. l. 4.
eſſe conoidis parabolici, quadru-
33I. Corol. 4.
gener. 34.
l. 2.
plum apicis parabolici, &
ſe-
ptuplum apicis ſphæralis.
Co-
noides verò parabolicum tri-
44Coroll. 8.
51. l. 4. ſe-
ctio 1.
plum eſſe apicis parabolici, &

quintuplum ſexquiquartum apicis ſphæralis, quæ ex ipſis nume-
55Coroll. 11.
34. l. 3.
ris colliguntur, ſimiliter conum, FCE, duplum eſſe apicis para
bolici, triplum ſexquialterum proximè apicis ſpæralis, quoad api-
cem ſphæralem enim ſemper proximam dictam rationẽ intellige,
&
tandem apex parabolicus ad ſphæralem erit ſexquiſupertripar-
tiens quartas.
THEOREMA XXVII. PROPOS. XXXIV.
SI in baſi cylindri, & circa eundem axim, fuerint hæ-
miſphærium, vel hæmiſphæroides, conoides parabo-
licum, hyperbolicum, &
conus, ſecto verò axi vtcunque,
ducatur planum per punctum ſectionis baſi æquidiſtans.
Abſciſſæ per ductum planum à dictis ſolidis portiones erũt
ad ſolida, à quibus abſcinduntur in ratione infraſcripta.

Similiter demptis dictis ſolidis ſingillatim à cylindro, ab-
ſciſſæ per ductum planum portiones ad reſiduum cylindri,
demptis ſolidis iam dictis, erunt in ratione infraſcripta.
Sit cylindrus, BF, in baſi circulo, DF, & circa axim, AE, circa
quem in eadem baſi ſit hæmiſphærium, vel hæmiſphæroides, DV
ATF, conoides parabolicum DOARF, hyperbolicum, DNASF,
&
conus, DMAIF, ſumpto autẽ vtcunq; puncto in, AE, quod ſit, k,
per, k, ducatur planũ, CG, baſi, DF, æquidiſtans.
Igitur hæmiſphę-
66Coroll. 7.
34. l. 3.
riũ, vel hæmiſphæroides, DVATF, ad portionẽ, VAT, erit vt pa-
ralle lepipedũ ſub dupla, AE, &
quadrato, AE, ad parallelepipedum
ſub compoſita ex dupla, AE, &
ex, EK, & @ub quadrato, kA. Co-
noides parabolicum, DOARF, ad conoides, OAR, erit vt qua-
77Coroll. 3.
51. l. 4.
dratum, EA, ad quadratum, AK.
Conoides hyperbolicum, DN
ASF, ad conoides, NAS, vt parallelepipedum ſub compoſita ex
88Coroll. 2.
30. l. 5.
ſexquialtera tranſuerſi eiuldem lateris, &
, EA, & ſub quadrato,

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