Iosephi Torelli veronensis Elementorum prospectivae libri II : opus posthumum (1788)
Torelli, Giuseppe, 1721-1781, Bertolini, Giovanni Baptista · Veronae : Ex officina Moroniana · leaf 13
titu, DINES. PROPOSITIO I. Data pofitione & magnitudine pyramide triangularembafim habente, ejus veftigium, angulorumque altitudinesinvenire. Hujus autem pyramidis pofitio hujufmodi effepoteft, ut aut ejus bafis fit in fubjedlo plano, aut uaurrjlatus, aut extremurn unius anguli. A i) 4… … Sit primo bafis ABC in fubjecto plano. Ducatur autem rectaDE eidem plano perpendicularis ; quas quidem cadet aut in unoIatere bafis ABC, ut AB, aut intra bafim ABC, aut extra. Ca-dat primo in AB, ut DE. Atque erit DE ipfi XY sequalis, ideo-que magnitudine data. Data eft autem magnitudine & AD.…
Perspective · Geometry
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