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

Table of contents

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[301.] COROLLARIVM.
[302.] THEOREMA II. PROPOS. II.
[303.] THEOREMA III. PROPOS. III.
[304.] THEOREMA IV. PROPOS. IV.
[305.] THEOREMA V. PROPOS. V.
[306.] COROLLARIV M.
[307.] THEOREMA VI. PROPOS. VI.
[308.] COROLLARIVM.
[309.] THEOREMA VII. PROPOS. VII.
[310.] PROBLEMA I PROPOS. VIII.
[311.] THEOREMA VIII. PROPOS. IX.
[312.] COROLLARIVM.
[313.] THEOREMA IX. PROPOS. X.
[314.] COROLLARIVM.
[315.] THEOREMAX. PROPOS. XI.
[316.] COROLLARIVM I.
[317.] COROLL II. A. SECTIO I.
[318.] B. SECTIO II.
[319.] C. SECTIO III.
[320.] D. SECTIO IV.
[321.] E. SECTIO V.
[322.] F. SECTIO VI.
[323.] THEOREMA XI. PROPOS. XII.
[324.] THEOREMA XII. PROPOS. XIII.
[325.] COROLLARIVM.
[326.] THEOREMA XIII. PROPOS. XIV.
[327.] COROLLARIVM.
[328.] THEOREMA XIV. PROPOS. XV.
[329.] ALITER.
[330.] THEOREMA XV. PROPOS. XVI.
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221201LIBER III. ad rectangulum ſub, BM, & , MOA, quod verum eſſe oſtendetur,
vt in antecedente, etiam ſi parallelogrammum, DN, non ſit circa
axim, vel diametrum, BM, vnde patet, &
c.
THEOREMA III. PROPOS. III.
SI intra circulum, velellipſim, duæ ad axim, vel diame-
trum ordinatim applicentur rectæ lineę, ſit autem paral-
lelogrammum, &
triangulum in eadem altitudine cum por-
tione inter applicatas concluſa, ſed in baſi altera applicata-
rum:
Omnia quadrata dicti parallelogrammia ad omnia qua-
drata concluſę portionis (regula baſi) erunt, vt rectangulum
ſub partibus axis, vel diametri per baſim conſtitutis ad re-
ctangulum ſub abſciſſa per baſim ab extremitate axis, vel
diametri, &
ſub compoſita ex medietate portionis axis, vel
diametri eiſdem applicatis intermedię, &
abſciſſa per aliam
applicatam ab eiuſdem extremitate, vna cum rectangulo ſub
eadem intermedia, &
ſub compoſita ex, @, eiuſdem, & , {1/2}, ab-
ſciſſæ per eandem applicatam ab eiuſdem extremitate:
Om-
nia verò quadrata incluſę portionis ad omnia quadrata dicti
trianguli erunt, vt rectangulum ſub compoſita ex abſciſſis ab
axi, vel diametro per ordinatim applicatas verſus terminum,
cui baſis propinquior eſt, &
ſub ſexquialtera abſciſſæ ab alio
extremo per applicatam, quę non eſt baſis, vna cum rectan-
gulo ſub huius reliqua, &
ſub dupla abſciſſę per baſim ab ex-
tremo, cui ipſa baſis propinquior eſt, ad rectangulum ſub
partibus axis, vel diametri per baſim conſtitutis.
Sit ergo circulus, velellipſis, ACDF,
134[Figure 134] centrum, O, axis, vel diameter, AD, duæ
ad ipſam ordinatim applicatæ ſint, IS, C
F, intercipientes portionem, ICFS, ſit
autem parallelogrammum, BF, in baſi
vtrauis applicatarum, vt in, CF, &
eadem
altitudine cum fruſto, CISF, ſit etiam
nunc circa axim, vel diametrum, MR, re-
gula verò, CF;
Dico ergo omnia quadra-
ta parallelogrammi, BF, ad omnia qua-
drata portionis, ICFS, eſſe vt rectangulum, DRA, ad

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