Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

Page concordance

< >
Scan Original
101 43
102
103
104
105
106
107
108
109
110
111
112
113 1
114
115 2
116
117 3
118
119 4
120
121 5
122
123 6
124
125 7
126
127 8
128
129 9
130
< >
page |< < of 213 > >|
120FED. COMMANDINI triangulum m k φ triangulo n k φ. ergo anguli l z k, o z k,
m φ k, n φ k æquales ſunt, ac recti.
quòd cum etiam recti
ſint, qui ad k;
æquidiſtabunt lineæ l o, m n axi b d. & ita.
1128. primi. demonſtrabuntur l m, o n ipſi a c æquidiſtare. Rurſus ſi
iungantur a l, l b, b m, m c, c n, n d, d o, o a:
& bifariam di
uidantur:
à centro autem k ad diuiſiones ductæ lineæ pro-
trahantur uſque ad ſectionem in puncta p q r s t u x y:
& po
ſtremo p y, q x, r u, s t, q r, p s, y t, x u coniungantur.
Simili-
ter oſtendemus lineas
76[Figure 76] p y, q x, r u, s t axi b d æ-
quidiſtantes eſſe:
& q r,
p s, y t, x u æquidiſtan-
tesipſi a c.
Itaque dico
harum figurarum in el-
lipſi deſcriptarum cen-
trum grauitatis eſſe pũ-
ctum k, idem quod &
el
lipſis centrum.
quadri-
lateri enim a b c d cen-
trum eſt k, ex decima e-
iuſdem libri Archime-
dis, quippe cũ in eo om
nes diametri cõueniãt.
Sed in figura alb m c n
2213. Archi
medis.
d o, quoniam trianguli
alb centrum grauitatis
33Vltima. eſt in linea l e:
trapezijq́; a b m o centrum in linea e k: trape
zij o m c d in k g:
& trianguli c n d in ipſa g n: erit magnitu
dinis ex his omnibus conſtantis, uidelicet totius figuræ cen
trum grauitatis in linea l n:
& o b eandem cauſſam in linea
o m.
eſt enim trianguli a o d centrum in linea o h: trapezij
a l n d in h k:
trapezij l b c n in k f: & trianguli b m c in fm.
cum ergo figuræ a l b m c n d o centrum grauitatis ſit in li-
nea l n, &
in linea o m; erit centrum ipſius punctum k,

Text layer

  • Dictionary

Text normalization

  • Original
  • Regularized
  • Normalized

Search


  • Exact
  • All forms
  • Fulltext index
  • Morphological index