Need to find the area of a hatch pattern? Don't forget the age old LIST command - simply select the crosshatching and AutoCAD will list the total area.
Command: LIST
Select Objects: (pick the hatch pattern)
HATCH Layer: "Const"
Space: Model space
Hatch pattern ANSI31
Hatch scale 10.0000
Hatch angle 0
Not associative
Area 315.3232