Line segments divided in continued proportion
Three segments (8, 4, 36, 2) and four segments (8, 4, 16, 2) in pencil
The sheet studies the proportional division of straight lines. A group of three segments is marked 8, 4, 36 and 2, and a group of four is marked 8, 4, 16 and 2, drawn in pencil. The values carry the halving progression 8, 4, 2 that Leonardo repeats across these folios; faint arcs and a small crossed circle appear near the top, and a pencil page-number (161) is in the corner.
On this page
Three segments marked 8, 4, 36 and 2
Three horizontal segments carry the lengths 8 - 4 36 36 - 2, setting out ratios among the lines. The values continue the geometric progression of the surrounding folios.
Four segments marked 8, 4, 16 and 2
A second group of four segments is labelled 8 - 4 - 16 16 - 4 - 2, continuing the study of proportionally divided lines with a further set of nested lengths.