Clavius, Christoph, Geometria practica

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11383LIBER SECVNDVS. rectam AI, menſurare poteris, cum ſit exigua) notus remanebit deſcenſus ob-
liquus IC.
2. Qvod ſi terminus C, in fundo cerni nequeat, inſpiciendum erit ex D,
&
E, aliquod aliud ſignum K, in valle, & obſeruandi anguli BDK, BEK, per ra-
dios DK, EK.
Ex his enim rurſus profunditas AB, vel KL, deprehendetur, vt in
problemate 4.
docuimus.
Qvin etiam, ſi in plano vallis commodè duæ ſtationes fieri poſsint: cog-
noſci ex illis poterit altitudo montis AB, vel IM, perea, quę in problem.
2. ſcri-
pſimus:
deſcenſus vero obliquus IC, hoceſt, interualluminter I, & C, ex iis,
quæ in problemate 7.
tradita ſunt.
3. Eandem denique profunditatem CH, perſcrutari licebit ex altiore
monte N G, dummodo infimus terminus C, minoris montis ex cacumine N,
appareat, vel aliquod aliud ſignum in valle;
non aliter, quam in problemate 18.
vel 19. altitudinem minorem ex maiori incognita indagare docuimus. Nam
hic maior altitudo eſt NG, &
minor CH, cuius terminum C, ex N, cerni poſſe
ſtatuimus.
4. Absqve numerorum multiplicatione, ac diuiſioneres peragetur, vt in
antecedentibus dictum eſt.
FINIS LIBRI SECVNDI.
48[Figure 48]

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