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

Table of contents

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[121.] THEOREMA XXX. PROPOS. XXXIII.
[122.] THEOREMA XXXI. PROPOS. XXXIV.
[123.] COROLLARIVM.
[124.] THEOREMA XXXII. PROPOS. XXXV.
[125.] COROLLARIVM.
[126.] THEOREMA XXXIII. PROPOS. XXXVI.
[127.] THEOREMA XXXIV. PROPOS. XXXVII.
[128.] COROLLARIVM.
[129.] THEOREMA XXXV. PROPOS. XXXVIII.
[130.] THEOREMA XXXVI. PROPOS. XXXIX.
[131.] THEOREMA XXXVII. PROPOS. XL.
[132.] SCHOLIVM.
[133.] THEOREMA XXXVIII. PROPOS. XLI.
[134.] THEOREMA XXXIX PROPOS. XLII.
[135.] THEOREMA XL. PROPOS. XLIII.
[136.] THEOREMA XLI. PROPOS. XLIV.
[137.] THEOREMA XLII. PROPOS. XLV.
[138.] THEOREMA XLIII. PROPOS. XLVI.
[139.] THEOREMA XLIV. PROPOS. XLVII.
[140.] COROLLARIVM.
[141.] SCHOLIVM.
[142.] LEMMA.
[143.] COROLLARIVM.
[144.] THEOREMA XLV. PROPOS. XLVIII.
[145.] COROLLARIVM.
[146.] THEOREMA XLVI. PROPOS. XLIX.
[147.] THEOREMA XLVII. PROPOS. L:
[148.] COROLLARIVM I.
[149.] COROLLARIVM II.
[150.] SCHOLIVM.
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124104GEOMETRIÆ guris iuxta regulas eas, quę ſunt regulę omnium ſimilium fi-
gurarum earundem propoſitarum genitricium figurarum, di-
centur ſolida inter ſe, vel ad inuicem ſimilaria, genita ex di-
ctis figuris iuxta dictas regulas, vel intelligentur ſemper eſſe
inter ſe, ſeu ad inuicem ſimilaria, licet hoc non exprimatur,
quotieſcunq;
contrarium aliquid non adijciatur.
D.
11D.
Cum autem duas figuras in eodem plano habuerimus in
eadem altitudine exiſtentes, rectangula ſub ſingulis earum,
quæ dicuntur omnes lineæ vnius propoſitarum figurarum, &

illis in directum reſpondentibus in alia figura ſimul ſumpta
ſic vocabimus, nempè Rectangula ſub eiſdem figuris, regu-
la eadem, quæ eſt omnium ſumptarum linearum regula.
E.
22E.
Cum verò propoſitarum figurarum altera fuerit parallelo-
grammum, cuius baſis, iuxta quam altitudo ſumitur, ſit ſum-
pta pro regula, dicta rectangula vocabuntur etiam:
Omnia
rectangula reliquæ figuræ æquè alta ac eorum vnum.
APPENDIX.
Pro antecedentium Definitionum explicatione.
_S_It ſigura plana quæcunque, ABC, duæ eiuſdem oppoſitæ tan-
gentes vtcunque ductæ, EO, BC, intelligantur autem per, E
33_Coroll.i._
_lib.I._
O, BC, indefinitè extenſa duæ plana inuicem parallela, quorum
quod tranſit per, EO, ex.
gr. moueatur verſus planum per, BC,
ſemper illi æquidiſtans, donec illi congruat, igitur communes ſe-
ctiones talis moti, ſiue fluentis plani, &
figuræ, ABC, quæ in toto
motu ſiunt, ſimul collectæ à me vocantur:
Omnes lineæ figuræ, AB
44_Defin.1._
_huius._
C, quarum aliquæ ſint ipſæ, LH, PF, BC, ſumptæ regula earum
vna, vt, BC, recti tranſitus, cum plana parallela rectè ſecant fi-
guram, ABC, eiuſdem obliqui tranſitus, cum illam obliquè ſecant,
eius ſcilicet tranſitus, qui in tali inclinatione ſit.
Intelligamus nunc, ABC, eſſe ſolidum, cuius duo oppoſita pla-
na tangentia ſint, quæ tranſeunt per, EO, BC, moueatur autem
adhuc planum, per, EO, extenſum, verſus planum per, BC,

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