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# Title: [Problema Austriacum Plus Ultra Quadratura Circuli] Problema Avstriacvm Plvs Vltra Qvadratvra Circvli (shelfmark Leibn. Marg. 230, Stück 1)
# Folio 1207, page id 1815201908:1264
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QV A D. R A Y V R A E Y P E R BOF A.
X207
lis CHI L. Pacelergo propolicum.
ctangulis O FL M L, eciam per 1. 2.Clb. LCClanigula PFIK aqualia erunc rectangu.
IIdem bons. hneguaatala I rectangulis GHIL aequalia.
Dico BN Nesse ad eandem hyperbolam cuius diamerer erie BC.
C
Demonstratio.
Scentum clL. quod linexe qua lune medixe incer lineaS LHH _C FTK, Cermineneux L1G2. H,
in hxperbola quae habet BC diamerrum, rectangulis aurem CHIL aequalia perb.
sunc rectangula LFIK exhypocheli, ve ridere cA pracedenti propositione. Isitur ec.
jam FIN, lincae qua medix Cuncincer larera rectansuli C HIL. crune ad lyperbo.
lam cuius diamerer BC. Guod tuir demonstrandum.
PROPOSITIO CZXVIII
Dico quadrarum Cit bla ta Acctutis lum btlt
esse proportionales quanrirates.
P R OFOSITIOCZXVII
IIdem manentibus:
Demonstratio
DRoporcionales enim Cuneper hypochelim pexecedenris lince OFL, NH, _ L FI.
loicur eelan propercionates lune quanuicaces, quadcacum C LL, rectangulum b1. Soxsii
OHN e CHL rectangulum.
PR OPOSITIO CXXIX.
oniunzancur hypocheles 122, 12). l 127.
125. B-
Vadracum OFI, rectangulum OFP, ee rectangulum TETK sunec proporrid 
Lvalia; icem proporrionalia lune dquacrarum C. FE rectangulum CHN, d rc.
8. hora
Dicorectangulo OHIP aequale esc rectangulum C FLN.
ctangalm is
Demonstratio.
e        et   t           1  1  1     t   . e               .  e a t . i) tis