114. Triang.
rectil.22
Vt ſin{us} to- \\ t{us} DC, # ad diſtantiam cogni- \\ tam DC, # Ita A C, Tangens maioris anguli \\ obſeruati ADC, # ad AC,
44
Vt ſin{us} to- \\ t{us} DC, # ad diſtantiam in- \\ uentam DC: # Ita BC, Tangens minoris anguli ob- \\ ſeruati BDC, # ad B C,
rectil.22
Vt ſin{us} to- \\ t{us} DC, # ad diſtantiam cogni- \\ tam DC, # Ita A C, Tangens maioris anguli \\ obſeruati ADC, # ad AC,
44
Vt ſin{us} to- \\ t{us} DC, # ad diſtantiam in- \\ uentam DC: # Ita BC, Tangens minoris anguli ob- \\ ſeruati BDC, # ad B C,
4.
Inventa rurſum diſtantia DC, per ea, quæin problemate 1.
&
2.
ſcripſi-
mus; detrahatur Tangens B C, (poſito ſinu toto D C,) minoris anguli obſer-
uati A D C, vt nota remaneat AB, differen@a dictarum Tangentium. Nam ſi fiat,
55 mus; detrahatur Tangens B C, (poſito ſinu toto D C,) minoris anguli obſer-
uati A D C, vt nota remaneat AB, differen@a dictarum Tangentium. Nam ſi fiat,
Vt ſin{us} to- \\ t{us} DC, # ad diſtantiam in- \\ uentam DC, # ita A B, differentia Tangen- \\ tium AC, BC, # ad A B, altitu- \\ dinem,
5.
Inventa per problema 2.
vel 15.
altitudine montis B C, obſeruen-
tur anguli B D C, A D C, per radios D B, D A. Poſito namque ſinu toto
D C, ſi fiat,
66 tur anguli B D C, A D C, per radios D B, D A. Poſito namque ſinu toto
D C, ſi fiat,
Vt B C, Tangens \\ minoris anguli \\ obſeruati B D C, # ad B C, altitu- \\ dinem inuen- \\ tam: # Ita A B, differentia Tangen- \\ tium AC, CB, angulorum \\ obſeruatorum ADC, B DC. # ad A B
Itaqve ſi AB, portio ſuperior totius alicuius altitudinis AC, deſideretur, in-
ueſtiganda erit per Problema 2. vel 15. tam tota altitudo AC, quam eius inferior
portio BC. Earum enim differentia notam dabit ſuperiorem portionem AB.
ueſtiganda erit per Problema 2. vel 15. tam tota altitudo AC, quam eius inferior
portio BC. Earum enim differentia notam dabit ſuperiorem portionem AB.