Next measure the crosswise distance on the geometric lines at 29, this distance on the arithmetic lines represents  Because our number was reduced to fit on the sector, we must scale the length up by  We can choose any convenient value, e.g.
Next, measure the crosswise distance on the geometric lines at 29. This distance on the arithmetic lines corresponds to Since our original number had to be adjusted to fit into the sector, we need to increase its size proportionally. Any convenient factor can be used, for example.