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# Title: Francisci Dulaurens Specimina Mathematica Duobus Libris Comprehensa (shelfmark Leibn. Marg. 134)
# Folio 87, page id 1066520976:0107
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LFBER I. CAPUF IV.
COROLLRETUM III.
In eodem, vel aequalibus circulis aequales rectae
aequales arcus abscindunt.
FE rero S feri posset ve ab xgualibus rectislineis duo
ejuldem, vel agualium circulorum subtensi arcus, inX qua
Desestent, procul dubio super una ex aequalibus lineis des-
cribiposset alius ejuldem circuli arcus, alceri arcui equalis.
cujus salcem aliqua pars supra, rel inera arcum, ab accepta
recta linea subcensum, transiret, (nam cum arcus illi po-
nancur inae quales, per eandem omnino viam transire non
debene,) e sic lequeretur ejuldem circuli radios inter le
Enaquales fore, quod repusnaenacurx circuli.
A P P E N D L X I.
Fiusdem vel equalium circulorum sermenta, aequales ba-
ses habentia, inter se aequalia sunt.
Nam, ucprobatum est, descriptus super una Cx ae qua-
libus balibus propoliti cujussiber seomenti arcus per can-
dem omnino viam transiret, quam arcusilliusscementi,
Super accepta basi existentis; ideo que idem spatium ambo
clauderenE.
DE _SU CLRCALL.
Lonsum esset recensere omnes circuli proprietates,
nec Paris commodus hic locus est ad eas enumerandas.
Ouare monuisse sufficiat in geomerricis nihil urilius esse
circulo. Ilincisicur omne principium, huc reter exicum.
OXX
Fizurae denominantur a linearum quibus illa continentur spc-
Sic a linearum speciebusfeurae Rectilineae, vel Curvilineae
Multilaterae. A numero anculorum LnanEuba, Deb LH.
zona Luadraneabae L ebdedaOt.
ciebus, vel a numero laterum anculorumve.
vocantur. L numato cacciam etduaeta,oras