Iosephi Torelli veronensis Elementorum prospectivae libri II : opus posthumum (1788)
Torelli, Giuseppe, 1721-1781, Bertolini, Giovanni Baptista · Veronae : Ex officina Moroniana · leaf 28
L I B E R I. 19 PROPOSITIO V. Si a punclo quovis C veftigii A , B, C, E ad com-munem planorum HR, 1S feclionem IR ducatur reciaCD ad datum angulum CDI; fumptaque in DR ipfi CDaequali DO , jungantur ad datum pundum L, in quodparallela incidit CL, redbe DL, LO; anguli LDO, LODerunt uterque dati.… … fitione & magnitudine. Pun&um igitur O datum eft. Datum eft penj.dxt.autem pun&um L. Utraque igitur DL, OL pofitione & magni- per^-s dat.tudine data eft . Igitur triangulum DOL fpecie datum eft; acper39.dat.propterea dati finguli ejus angull. Dati funt igitur anguli LDO, pe^.def.LOD…
Perspective · Geometry
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