When plotting spalls as polygons, which action is performed last?

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Multiple Choice

When plotting spalls as polygons, which action is performed last?

Explanation:
When you plot spalls as polygons, you first establish the spall’s direction by joining the starting and ending centerpoints. This creates the central axis for the polygon. Next, you define the across-spall extent by plotting the ending width perpendicular to that initial line, which sets the polygon’s breadth. Then you close the shape by connecting the end points to complete the polygon, giving you a defined boundary that encloses the spall area. Only after that boundary is established do you mark the estimated number of spalls, because the count is tied to the defined polygon area and makes sense once the shape is fully drawn.

When you plot spalls as polygons, you first establish the spall’s direction by joining the starting and ending centerpoints. This creates the central axis for the polygon. Next, you define the across-spall extent by plotting the ending width perpendicular to that initial line, which sets the polygon’s breadth. Then you close the shape by connecting the end points to complete the polygon, giving you a defined boundary that encloses the spall area. Only after that boundary is established do you mark the estimated number of spalls, because the count is tied to the defined polygon area and makes sense once the shape is fully drawn.

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