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# Title: Erhardi Weigelii Sacrae Caesar. Maiest. ut & Com. Pal. Sultzb. Consiliarii, Supr. Artium Archit. Directoris Saxo Ien. Mathemat. PP. totius Academiae Senioris, Philosophia Mathematica (shelfmarks Leibn. Marg. 65; ZEN Leibn. Marg. 65)
# Folio 304, page id 79876922X:0808
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304
DE IRVESTTGATIONE
VE Hact. 10. 00000, ad TarZ. BC. 9. 83523. ita
id 5I+
L.aF. detum AB. 29,70. L08. 3.4727540d.
o TII
_d LaF. BCi, (20.3. 3.)
na
X5.30798I.05.
Lrangutis Obliquan-
SulIS.
Principia geometrica.
Omnes tres anguli cujusque triansult
sunt= les duobus rectis.
2. Anculi deinceps sunt- duobus rectis.
3. Perpendiculum à vertice trianguli ad
basin ductum, si anculus ad basen est ob-
cusus, cadit extratrianculum ad par-
tes obtust.
4. In trianculo latera inter sese habent
ut sinus anculorum ipsis oppositorum.
Desiderium I. Philomatha
a Sapientia Divina.
In trianculo ad basm acutaneulo ABC.
dasis duobus lateribus AC. 36. pert. BC.
50. pert.
S
11
eltd
Dec