To calculate an Area on a Plane

To calculate an area on a plane

1. Click Review tab Measure panel Measure drop-down Area.
2. Click to register a series of points to describe the perimeter of the area you want to calculate. The optional dimension label displays the area of the perimeter described since the first point, as projected onto the plane of the viewpoint.
   
   Note: For your calculation to be accurate, all added points must be on the same plane.