Chapter 9, Problem 9.1P

To determine

The procedure to achieve polygon traverse.

Explanation of Solution

A closed traverse is a series of consecutive lines in which the last line ends at the starting point.

The sum of total interior angles is determined using the expression

  Sum of angles $(S)=(n-2)\times 180\text{ where }n\text{=number of sides of the polygon}$

The angular misclosure is estimated using

   $\text{Angular misclosure (}A\text{)=Sum of measured angles (}S\text{)-Geometrical correct total}$

If $A\ne 0$, then the A value is divided with total number of angles, and each angle is corrected

  Correction of each angle $=\frac{A}{n}$

The correction can be negative or positive, according the correction is either added or subtracted from each angel.

The above procedure is followed to achieve angular closure in a polygon traverse.