Full text: Angeli, Stefano: Miscellaneum Hyperbolicum et Parabolicum

dium ipſius B D, ſit centrum grauitatis exceſſus co-
noidis parabolici E B F, ſupra conum E B F; ſe-
quitur etiam centrum grauitatis exceſſus conoidis
A B C, ſupra ſuum conum eſſe in medio ipſius
B D.



Quod vero centrum grauitatis exceſſus conoidis
parabolici E B F, ſupra ſuum conum ſit medium
punctum ipſius B D, patet. Quia P, centrum
grauitatis conoidis diuidit B D, vt B P, ſit ad
P D, vt 2, ad 1, ſeù vt 8. ad 4. N, verò cen-
trum grauitatis coni diuidit B D, ſic, vt B N, ſit
ad N D, vt 3. ad 1. ſeù vt 9. ad 3. Ergo qualium


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