Angles are always less than 90 and related to compass coordinates.
1. Select start point of line, then placement of dimension.
Dimension is noted as angle over length:
1. Enter another line by selecting Snap To Polar coordinate.
2. Entering on the command line: @123.26<90+23+12/60+43/3600
A little more typing, but it works.
Integrate that so that you can use a file to load for input "surveyors coordinates")