fiat demonftrandum eft hoc Lemma. Lemmi. Segment urn quodlibet A E eft ad reliquam Diagoni-»m BD,v jxtlui a Uteribus eidtm \tgmento confer-minis A F, A D 1 o, ad 26 fummamfatlorum a Uteri*bus ijfdem A B, 2. A D, 5, in fua conteimtnn later a jSB C, 3. D C, 4. Sunt enim triangula oppofita AEB*DEC,…
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![An illustration from Albertvs Dvrervs Nvrembergensis pictor hvivs aetatis celeberrimus, versus è Germanica lingua in Latinam : pictoribus, fabris aerariis ac lignariis, lapicidis, statuariis, & vniuersis demum qui circino, gnomone, libella, aut alioqui certa mensura opera sua examinant, propè necessarius, adeò exactè : quatuor his suaru[m] Institutionum geometricarum libris, lineas, superficies & solida corpora tractauit, adhibitis designationibus ad eam rem accommodatissimis : denuo ad scripti exemplaris fidem omnia diligenter recognita, emendatius iam in lucem exeunt (1535)](https://img.insideoutlibrary.com/img/200/ia-albertvsdvrervsn00dure-66-0.webp)
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-103-243.webp)
