2012

You can also select to specify the points. A rubberband line from the first
specified point to the cursor is displayed
Specify points to define a polygon (3). The area to be added is highlighted in
green. Press ENTER. AREA calculates the area and perimeter and returns the
total area of all the areas defined by selecting points or objects since Add mode
was turned on.
If you do not close the polygon, the area is calculated as if a line were drawn
from the last point entered to the first. When the perimeter is calculated, that
line length is added.
Subtract Area
Similar to the Add Area option, but subtracts areas and perimeters. You can
use the Subtract Area option to subtract a specified area from a total area.
You can also specify the area to be subtracted with points. A rubberband line
from the first specified point to the cursor is displayed.
The specified area to be subracted is highlighted in red.
The total area and perimeter displays at the Command prompt and in the
tooltip.
42 | Chapter 2 A Commands