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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 10, page id 824573315:0094
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=824573315&page=94
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# Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 35 lines, status machine
# Lines: 35 recognised, mean confidence 0.89
# Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German.
# Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text.
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# After the first blank line: the recognised lines in reading order, one per line.

De rectionibus Conicis.
pa io, (e IB Es Tolunmodu e Alcirudinis; modo de his conAeeo
consabic ecium de arca Trianouli.
Duod autem de A: qualitare dictum est, Facile porest eriam Proportiona-
lirari accommodari. 13.d _ (xpius deinceps eric incelligendum.
Has vero duas de Aeca Frianguli Propoliciones non ideo
hic inserendas inticari, acii novun qrid aue inaudicum in le
contineanc, (qis enim teen Pcir.) Seit re vis Pernacire conti-
mili argmmencacioni in aliis tieuris sive planis Are Colidis. Si e
nim aequales sent tam bases quam alrirudines. omnieque intermedia ((ive
Paralleloeramm sive Prismata) eadem ratione vel creseant vel decresa
eant, aequales etiam erunt fieurae quamvis earum aliera crecta su altera
vel inclinata vel quocunque modo lux na. Nam cum infmiee ParceS 1
nins intinris parcibus alcerius Ggilla. im aegeneur, lguan-
qnam Forcassis in alio sICU FEDETIAMCUE,) erUNE d aBGFCBaTa X-
qualia.
Acgi hoc qidem semet de univertalicer monsrasse suE-
ticiac, ne varias deinceps propoliciones parciculares, ciera
st
meceslicarem, mulciplicaTO COBAC.
De C OnO.
infinitae Recte parellele ex quibus conslari
supponitur Triangulum, hanc tocidem Circulo-
rum parallelorum diametris Formabitur Roura
Tolida qui Conus dicieur.
Rectagi a Prianguli vertice V (qui e Coni vertex
Cst) ad Basis BS punctum medium ducta, puTaV C,
(quam Trianculi Diametrum vel Axem libet oppella-
xe) bilecabic etiam religuas Prianguli rectis basi pa-
rallelas (corcurgitriongule) adcogi per Cinoulorum
circulorum parallelorum cenera transibicheritq: prop.
cerea aris com; Triangulunqiexpolitum. VBS, per
axem Conitrantiens, ipsum Conum ejulqs paralle.
10
eROF