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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 34, page id 824573315:0118
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# Lines: 25 recognised, mean confidence 0.88
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e
De Sectionibus Conicis.
PKOD. 2+
verticeshabens oppositos, aguabitur illud cuneo cui-
Leuacoa qualt accullaco) hdecucento
teto apet van triansulari aBA crocto, alcicudinem
dam bicuneato (nempe binas oppositas acies habentis
habenti super puncto Aaequalem rectae AS, led aequa-
bilicer decrescentem donec super recta aB tandem
eroncleat e nulla EI. Et quidem Cegmenta illius, Ana-
losis lermentis hujus. Adc0q; ex noca menlura.
Manifelum enim est, quod, s Cuneus ille BicuneatS (quen
Cunoum K llipricum libee appellare) plano ad planum erianoule
aBA reCtO (GCMEe AS luovonitur ad idem planum recta esse
Ecu Derpendicularis) ubiris Cecetur Secundum rectam DB quae
sic aD rectae Parallela, sectio illa praectabie rectangulum BIS,
cujus duo lacera erine recta aB parallela, reliquaq3 duo rectae
AS, cocumq; rectangulum PD in Cuneo, Analogorectanon-
l0 PDS in Conodchignaco, aequale erit: Adeog; rectanpula
omnia BD in cunco, equalia erune rectangulis omnibus BDS
in Conn desionatis, hoc cA, omribus quadracis DO; hoc eAt,
eocus Cineus cori Pyramidoidibicuspici aequaliserie, et qui-
dem seemenca hujus analogis Ccgmencis illius. Vu0a craco
Rondenduns. lea catmem us eadem resimeatur alcicudo Pyrami-
doidis