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# Title: Qua Continentur De Angulo Contactus & Semicirculi, Disquisitio Geometrica. De Sectionibus Conicis Tractatus. Arithmetica Infinitorum: sive de Curvilineorum quadraturâ, &c. Eclipseos Solaris Observatio (shelfmark Leibn. Marg. 84:2)
# Folio 43, page id 824573315:0127
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 37 lines, status machine
# Lines: 37 recognised, mean confidence 0.88
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PROP. 20.
DeScraono CiOicis.
43
PROP. ZX.
De Fyperbola Latere. Retto.
Em Sc in TIyperbola, ut dictum est, DOg =-BC
m
nDSi adeog; quanciras ordinacim applicaca-
rum DO, excognitis rectis BID, DS, coDnOI
Ci POLTES non COnTrA: (cum postint rectae BD. DS, in-
finitis modis variari, pro conorum variorum diversi-
cate, aut etiam varia ad cun-
dem conum opplicacione, dum
interim rectarum. DO quanci-
Eas eadem maneats sieur de Pa-
rabola ex Essip supra diccum
elE PrOP. 12, BE 16.) Commo.
dum igitur visum est Conico-
rum Scriptoribus, harum loco,
alias mensuras substicuere, qui.
bus Ordinacim applicatarum
quancitatem exprimant, qua
eandem Arperbolam ubique
comitentur in quocunqi de
mum cono, auc quocunqi ad
illum modo applicetur, aut c.
eiam extra conum contritua.
TUT. (Quod _ de Parabola de EIlipsi Factum esse Cupra
declaratum cst. )
Nempe, pro singulis rectis BD, substimune Cingulas
AD diametros interceptas, qua quidem illis lunt pro.
portionales.
PFO RECta verO AS, substicuunt aliom, puta LA, im2
sinariam, (guod Latus. rectum appellZnE;) qua CI
bus DB, AS, DA, Ct quarca reciproce proportionaiis;
ac sic ubiq; DB X AS- DAn AL; adc09; LacuS 1C.
etum