Find all objects that have the same shape.

Your drawing has many Autodesk® AutoCAD® objects, and you want to quickly filter all objects with the same shape as a selected one to calculate their total area. Total perimeters, erase, edit, or use them as a selection set for another command.

You can use this selection set in later commands. Immediately after using the SSShape command, initiate another command, and when prompted to select objects, enter P (previous).

The application supports all the following objects:

• Arc, Circle, Line, Mline, Spline, Lightweight polyline (LWpolyline) with same orientation.
• Polyline(2d/3d with fit/smooth = None).
• Inserted blocks

More Details Here