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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 60, page id 824573315:0144
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# Lines: 23 recognised, mean confidence 0.94
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DeSectionibus Conicis.
PR OP. 26.
etansula ld, ipls ddiameeris intercepeis proportiona-
lia propter communem alticudinem l: ipla vero de
dliametrorum interceptarum quadratis de proportio.
nalia, proxter communem rationem.)
Diametrum, Diametros- interceptas, Verticem, Ordina
tim- positas. Ordinarim inscriptas, (Tive Ordinatim-subo
tensas,) Ordinatim applicatas, 2tq Punctum- applica-
tionis; eodem Censu hic accipio quo suprâ de l’arabol
ildem ulus sum.
Rectam noca l insignitam, (lineam puca imagina-
riam, quae cum interceptisdiametris, continere sup-
Donitur rectansula Majora, diametris- interceptis pro-
portionalia,) appello Latus- Rectum.
Rectam vero alteram, quae noca = desigNatT,
(quam quidem supponimus Diametri scomencum el-
CC, a vertice verlus concaram Currae partem ductam;
quaeq; ita Ce habet ad lacus rectum ut diametrorum
interceptarum quadrata ad rectansula Mtinora, illis
quadratis proportionalia,) Diametrum transversam
appello; (uc quae oppolitos vertices conjunsit, puta
ha, ut mox dicetur:) ejusg punctum medium, (quod