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# Title: Leibniz-Handschriften zur Mathematik LH 35, 13, 2a
# Folio 104r, page id 00068197:0207
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ttriamulo ABC et ejuque angulorum
constr
Dinvenire
ogervatione exstatione
angulorum distantias a statione D
constincta
Constinatur criangulum
datum ABC, ex observat
nnulorum ADC, BDC
spmaina
roulementis ad 2 rectos ADP
op
aquatibque ad AB constitutis B A=A
et ABH = B
AG
F duct recto
BH conceerrant
in E. Tum
junta la
e
quam mls
es b
per D
jangatur
et
B. Et
angulus 
habebitur,
cui addatur
angulus BD
summa subtrahatur
a quatuor rectis
esiano angulo EBK
ducatur recta BK
quae occurret ipsire
in puncto O quaesito
Hhabito ergo puncto d.
habentu et rectae DA,
Db, DC quaesita
dato triangulo
f
BCa
et  ejusque observa
aingulorum observatione ex puncto
L
invenire eorum distantias a statione d. ebE
acer c AB
dil
(OcB+BDF) LEreot
F BdT = 2 rest =BDC
rianguli ABC dantur latera, dantur et anguli
ex hypothesi. dantur anguli ADB, ADC, BdC
ex observatione. per puncta AB pro
parbibrio ex tribus sum sumla, et statione
d respribi intelligatur circulus cui recta per
Cd occurrat in
L
cAB ene
unulus Ad ex dofero. Ergo et ADE
BG
C1
ectae
ob datum
angulum ADC, datur et ang. Ad5 Ergo et ang. eiq
Cungantur
ei aequalis, ABE.
Eodem modo ob datum  anu
e ergo et ei aequalis B.
a
tertius ad E, daturque et ejus latus AB, dabitur
ergo trianguli ABE
E quia
dantur anguli ad A et ad B, adeoque et
3DC datur anue. BDC
itac etia ob angulos tibes
e
dataa ae eoruu smma
L
angulus BE
tenasus
adeo
m Ergo et anq utque CEB
n
bi ise
Ergo ob anguli CEB seu dEB datum; et angu. BdE. datum tantur anguli triangali
et
qum
eE e
eotora
postrm ob angalos
e
adeoque latus DBquaesitum
e
BED, adeoque datur ACBE
ergo et frrangulum BdE
Hinc eliciemus constructionem ad marginem huius scredae seuptat
et unum latus BE
tite mus
10c