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# Title: Leibniz-Handschriften zur Mathematik LH 35, 12, 2
# Folio 82v, page id 00068195:0164
# Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=00068195&page=164
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sD
Pigranis AB duti (idiatio, et pum a, et   perp. ad ad, Bpad
atque in plono BDF ducenda FLinormalis
ix busa pucatur b porgilis ad FB inaguntur AF, AB. qua t
IF
go
B. Ergo)
aa dis
ponut
et ad ur.
Non videtur
simul pp..
Fraeque rd
ost eus, eneme
ornalis B)
ex puncto dato in plano
perpendicularem ducere
t adt rectatu extra planum
positione datam
datur Fd, datur AB
perpendicularis ad planu
cui paralleta In
fie
In: nd: dl:: AB. Bd: Ad
ncatur
perp. ad D
erg Aerdi dn: ur:: gd: db
eta prpo ad Bd si Y quperr ad FD. erit 
aequin In +rn
rarsus tr itf In: nd:: AB: Bd. ncl: nX: DB: Bq
Ergo ln: nN:: AB. DB: DD. B8. Ergo
lr:m:: 1 pe e  sae
Ergo br t. lr:nr:: SAB+Z BqB
at nr: Yd:: B9: 4D. Ergo Ir. rd:: AB : 2
seu lraego Yd (AB, Bqr: 2D s
Ex aego ra AB+B2: QD. et quia l ide
prop. inter Ererre. eut
a
ra F Fngo 
BAQ, AB+BB,: gDEm 
E r AB aqu. FB
Ergo poaequ. DGB (EDL AC+B2)eFAVoC
sed r. Dt: PL: FB
AB+ BF aequ A
Est est aulem  constans perpendi.
cularis ad planum BdF ergo
datur AB datur et BF, DF
ex natura curvae 
simililer est AC constans per
pendicularis ad planum CEG
quaeritur relatio inter CE
et CG. Dantur autem
rest DRtem
rectae AB, AC, AD, AE,
Laequ Ird. F
n BL aeg. FD. 2D
seu DLaego FD. 8D
Nota duto
datur ergo et AF
et ut perpendiutar
duximus
ep
Ad extraplanum.
a
s auu
(AD +2DQ
et 60, CE