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# Title: [Ps. 1] (shelfmarks Leibn. Marg. 178, Stück 1; Leibn. Marg. 178)
# Folio 350, page id 175905688X:0372
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=175905688X&page=372
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350
APPENDEX DE CUBTOARUM
autem F HI seu TIR ∞ a, es F C ∞ b, oporteat invenire
FL ∞ X.
TUNSanEUFRL, L. I, _ TO, duet aque F Iproducatur ad S, do-
nec anguluS FS L. aequetur angulo PF L: erieque S L aequalis L. P,
per 6 pri - _S Laequalis F L. AEqualis enim estSL ipAL F 2, _S Lip(IFK,
mi Elem. propcer triangula TP. S _ RL F, quorum duo anguli L LS de 5
per 22 e unius linguli lunt ae quales duobus L K F _ L F R alterius 2, dc
22 certii PEXEerCA laTUS TP lateri LK 3. Eodem modo, producta F C, d0.
Elem. nec nec angulus F T Iaequetur angulo GF I; eric Cuniliter I Laequd
non 13 pri-
mi Elem.
isTF, aeque TC ipsi L F. Porro cum similia sint triangula FHL,
per 29 FL. S, ex FIT: erit ut IIF ad FL, ita L F ad F5. Cinde cum
rerrii Elem. YIF sit ∞ a, _ FL D N, eric FS ∞ =, C qua li auteratur SI leu
KF ∞ a, relinquetur LF ∞ =~ L a. Fadem ratione, cum GIEUE
Xe 3
IFadFL, ita LFad F P, CrIEF T ∞:
Aa
2X, C qua CITOIlaTuTYC
Teu FL. ∞ X, remanebit
GF∞ - - 3 X. Reltac
IgItUE, UE  - 3 X ad.
aequetur ip(I C F da-
Exe ∞ b. Juare aequali
tate ordinatâ, X3 _equ8
bitur 3aaX F aab. Oua
aequatio sccundae for-
ula eAt, in qua qua
deatum Cemissis ulcimi
termini ect minus cuvo
nica Pehut. Masuo
enim cA a quom = a+ bb.
Nam si uErOBIque diri.
dauS per a, EC aAa-
jus quam b, cuI, 1
erinque extrahendo ra-
dicem, a tiaemajus quam
=b. leu a majus quam b.
EIc est manifectum, cum
a dia-
erientis quancicatis cog.