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# Title: [Problema Austriacum Plus Ultra Quadratura Circuli] Problema Avstriacvm Plvs Vltra Qvadratvra Circvli (shelfmark Leibn. Marg. 230, Stück 1)
# Folio 245, page id 1815201908:0302
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Demonstratio.
: L. L. LF 5 +8.
proniam OP CA parallela ad AC CaI-
Lque seCaE FD in M non subconerarié, hoc
est angulum BFD non consticuens aequalem
ansulo B AC, Pacec ex 36. libri nostri primi
reccangulum FMD inaequale esse recrangulo
OMEP. Sed reccangulum OMP ZONAEUE re-
crangulo NMI F. ergo rectangulum FMD FC=
ceangulo cciam NYME inxquale est; liquecioi-
EuT Cx 35. cerris figuram D P F N non eMccireu.
um. Ouod crar demonstrandum. 1C
e R OP OSIFFO III.
AEUS SIE conuS quicunque Live re
ctus sive lealenus,  CxFCFa POnanEI
ex tianc eadem que Cupra:
DICOTECTam N E. a recta D F Secari bi-
Cariam in M.
Demonstratio.
Ecca PM ex hyporhesi est parallela ad rectam AC, _ NI R paracla 2d IK.
OuatC PM, P. M ansulos comprehendune aequales, acgut at MuS ATK ex hV.
Pochelirectus est, communis enim sectio TR Posta fise petpenas ad ACL
propolicione primaierso eriam PMR rectiS eHt. IEaque CUM LCCTiO ONF L HECIE-
16. prote
culus, ciulque diameter OP; manitestum cn F. M H a Mameco eculi OP, 43 eerii
quam normalis est, bilecari in M. Sed ex hypochen panccu n cous lel .
NE. DF communis est. erSO NE a DF, bilecac u . u etat detmon.
Corol-
itrandumi.
CL l 3