Theodosius <Bithynius>; Clavius, Christoph, Theodosii Tripolitae Sphaericorum libri tres

Table of figures

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55
D
. # A. # AC. # # CD.
100000
. # 61932. # 24? # fit # 14 {2699/3125}.
77
D
. # ACD. # AC. # # AD.
100000
. # 78514. # 24? # fit # 18 {5271/6250}.
88
BD
. # BD. # CD. # # CD.
10
{979/6250}. # 100000. # 14 {2699/3125}? # fit # 146344.
Tangens autem 146344. monſtrat in tabula tangentium angulum B, grad.
55. Min. 40. ac proinde duo anguli A, B, grad. 38. Min. 16. & grad. 55. Min.
40
.
ex grad 180. ſubducti reliquum facient angulum ACB, grad. 86. Min. 4.
Quoniam
autem eſt, vt ſinus anguli B, noti ad ſinum anguli A, dati, ita latus
991. huius. datum AC, 24.
adlatus BC, reperietur latus BC, 18. ferè. vt hic vides.
1010
B
. # A. # AC. # # BC.
82577
. # 61932. # 24? # fit # 18. ferè.
RVRSVS in triangulo ABC, datum ſit latus AB, 13. AC, 11. & an-
gulus
A, ab ipſis comprehenſus obtuſus, &
datus grad. 112. Min. 37. Duca-
188[Figure 188] tur ex alterutro angulorum acutorum, vt ex B,
ad
oppoſitum latus CA, perpendicularis:
quæ
1111Schol. 12.
ſecundi
.
extra triangulum cadet.
Quia igitur angulus
BAC
, ponitur grad.
112. Min. 37. erit BAD,
grad
.
67. Min. 23. eiusq́ complementum pro-
pterea
ABD, neceſſariò grad.
22. Min. 37.
1313
D
. # BAD. # # AB. # # BD.
100000
. # 92310. # # 13? # fit # 12. ferè.
# # Item.
D
. # ABD. # # AB. # # AD.
100000
. # 38456. # # 13? # fit # 5. ferè.

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