Namque si sumantur regulae tres, e quibus una sit pedes iii, altera pedes iiii, tertia pedes v, eaeque regulae inter se compositae tangant alia aliam suis cacuminibus extremis schema habentes trigoni, deformabunt normam emendatam.
For if three straight rods be taken, of which one is 3 feet long, the second 4 feet, the third 5 feet, and let these rods, being jointed together, touch one another at their extremities in the form of a triangle, they will make a perfect set-square.
final_alignments\Vitruvius_Architecture_Book_9.json