R is the given halfline, with C as origin, and AB is the segment to be reported.
Build the segment AB, using
Segment-with two
points
.
Build the halfline using Halfline
.
To report the segment on the halfline, it is necessary to draw a circle with
center in C and radius equal to the segment lenght.
It is possible to do that calling
Circle-with pt two pts
and clicking in C, in A and B. The segment CE is equal to AB.
With the previous construction, it's possible to determine the sum of several segments or the multiple of a given segment according to a fixed number or the difference between two segments.