American Land Title Association (ALTA) Practice Exam 2026 – Your Comprehensive All-in-One Guide to Success!

The aspect of the survey’s boundary that is essential in terms of mathematical closure involves both the direction and distance being provided. Mathematical closure is a key principle in land surveying, ensuring that the starting point and endpoint of a boundary line are the same, confirming the integrity of the surveyed area.

When a surveyor conducts a survey, they need to measure the length of each side of the boundary and the angles involved to accurately represent the shape of the parcel. By providing both the direction (which defines the bearing of the lines) and distance, the surveyor ensures that the survey can be mathematically checked for accuracy and that the geometry of the plot is maintained. Properly calculating and reporting these elements allows surveyors to confirm that their work is precise and accurate, ultimately leading to a reliable representation of property boundaries.

In contrast, perimeter measurements alone do not account for the geometric relationships that are fundamental to closing the boundary properly, while displaying all angles is useful but not as critical as the combined aspect of distance and direction for closure. Additionally, closure calculations are a vital part of the surveying process, making the assertion that they are not required incorrect.