DelMonte, Guidubaldo
,
In duos Archimedis aequeponderantium libros Paraphrasis : scholijs illustrata
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CDO, quam triangulum GHQ ad
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KLq.
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quare diuiden
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do ſpacium ACDB ad triangulum CDO eſt, vt
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GKLH ad triangulum
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abbr
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kLq.
">kL〈que〉</
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Rurſus quoniam ob triangu
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lorum ſimilitudinem ABO CDO, ita eſt AB ad CD,
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marg233
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BO ad OD. ſimiliter ob ſimilitudinem
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expan
abbr
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triangulorũ
">triangulorum</
expan
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GHQ
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lb
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KLQ ita eſt GH ad kL, vt HQ ad QL. & eſt AB ad CD,
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vt GH ad KL, erit BO ad OD, vt HQ ad QL. &
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marg234
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diui
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lb
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dendo BD ad DO, vt HL ad
<
expan
abbr
="
Lq.
">L〈que〉</
expan
>
deinde
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expan
abbr
="
conuertẽdo
">conuertendo</
expan
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DO
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lb
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ad DB, vt LQ ad LH. & eſt BD ad DF, vt HL ad LN,
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ex ęquali DO ad DF, vt LQ ad LN. Quoniam autem ſimi
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lium triangulorum CDP EFP latus CD ad latus EF ita ſe
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lb
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habet, vt DP ad PF. ſimiliter exiſtentibus ſimilibus triangu
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lb
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lis KLR MNR ita eſt KL ad MN, vt LR ad RN, & vt CD
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ad EF, ita eſt KL ad MN, erit DP ad PF, vt LR ad
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marg236
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lb
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& per conuerſionem rationis PD ad DF, vt RL ad LN. &
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lb
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conuertendo DF ad DP, vt LN ad LR. diximus
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expan
abbr
="
autẽ
">autem</
expan
>
OD
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lb
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ad DF ita eſſe, vt QL ad LN, & eſt DF ad DP, vt LN ad
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lb
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LR. ergo ex ęquali erit OD ad DP, vt QL ad LR. At
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arrow.to.target
n
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marg237
"/>
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lb
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quoniam ita eſt OD ad DP, vt triangulum OCD ad PCD,
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lb
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& vt QL ad LR, ita eſt triangulum QKL ad
<
expan
abbr
="
triangulũ
">triangulum</
expan
>
RKL,
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lb
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erit OCD ad PCD, vt QKL ad RKL. Quoniam
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expan
abbr
="
autẽ
">autem</
expan
>
<
expan
abbr
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triã
">triam</
expan
>
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lb
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gula CDP EFP ſunt ſimilia, triangulum CDP ad
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marg238
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EFP proportionem habebit, quam CD ad EF duplicatam,
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hoc eſt quam habet CD ad Y, cùm ſint CD EF Y propor
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lb
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tionales. </
s
>
<
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id
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">ſimiliter ob triangulorum KLR MNR ſimilitudi
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lb
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nem triangulum KLR ad MNR, ita erit vt KL ad Z, eſt au
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lb
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tem CD ad Y, vt KL ad Z, erit igitur
<
expan
abbr
="
triãgulum
">triangulum</
expan
>
CDP ad
<
lb
/>
EFP, vt KLR ad MNR, & diuidendo
<
expan
abbr
="
ſpaciũ
">ſpacium</
expan
>
CEFD ad
<
arrow.to.target
n
="
marg239
"/>
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lb
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gulum EFP, vt ſpacium KMNL ad triangulum MNR. &
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expan
abbr
="
cõ
">com</
expan
>
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arrow.to.target
n
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marg240
"/>
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lb
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uertendo triangulum EFP ad ſpacium CEFD, vt
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expan
abbr
="
triangulũ
">triangulum</
expan
>
<
lb
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MNR ad ſpacium KMNL. Ita〈que〉 quoniam oſtenſum eſt i
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lb
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ta eſſe ſpacium ACDB ad triangulum CDO, vt ſpacium
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lb
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GKLH ad triangulum
<
expan
abbr
="
KLq.
">KL〈que〉</
expan
>
& vt
<
expan
abbr
="
triangulũ
">triangulum</
expan
>
CDO ad trian
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lb
/>
gulum CDP, ita triangulum KLQ ad
<
expan
abbr
="
triangulũ
">triangulum</
expan
>
KLR, dein
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lb
/>
de, vt triangulum CDP ad triangulum EFP, ita
<
expan
abbr
="
triãgulum
">triangulum</
expan
>
<
lb
/>
KLR ad triangulum MNR; deniquè vt triangulum EFP ad
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lb
/>
ſpacium CEFD, ita triangulum MNR ad ſpacium kMNL, </
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