Iosephi Torelli veronensis Elementorum prospectivae libri II : opus posthumum (1788)
Torelli, Giuseppe, 1721-1781, Bertolini, Giovanni Baptista · Veronae : Ex officina Moroniana · leaf 30
deinceps poiiti. Secent fe fe invicem plana HR, IS; funiptifque in plano ISpun&is A, C, ducantur ab iifdem ad 1R communem planorumIIR, IS fe&ionem paraliete AQ, CD, & ad planum HR pa-rallela; iieni AK, CL; fumatur autem a pun&o QJpfi AQ^qua-lis re&a QY, ctqualiique ipfi CD a… … Quoniam enim dua? re&a? AQ^, AK parallelas funt duabus re-iils CD, CL, quje plana per ipfas aguntur AQK, CDL eruntparallela. Et quoniam duo plana parallela AQK , CDL fecantura plano HR, communes ipforum fectiones QK, DL funt paral-lelas . Angulus igitur KQY sequalis eft angulo LDO.…
Perspective · Geometry
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