Cutting equal parts from the greater magnitudes
Proportion operation: subtract from the greater parts equal to the lesser (a 8, g 4; c 4, h 2)
This recto of Manuscript K states a proportional operation in its heading: 'Taglia da le maggiori parte equali alle minori,' cut from the greater magnitudes parts equal to the lesser. The labelled segments give a 8, g 4, b and e 4 (with 12), and c 4, h 2, d and f 2 (with 6). The figures are drawn in pencil and reinforced in pen, headed by the numeral 251.
On this page
Cut from the greater parts equal to the lesser
The heading directs the operation 'Taglia da le maggiori parte equali alle minori' — subtract from the greater magnitudes parts equal to the smaller. The paired segments carry a 8, g 4, b, e 4 (12) and c 4, h 2, d, f 2 (6).