Measure Area
Click on the Measure Area tool.
Select a method: Create Boundary, or Select Boundary.
Create Boundary:
Click on the canvas to set three or more vertex locations to define the boundary of the area to be measured.
Right click and select Confirm to set the final location, or press Spacebar.
The area is displayed on the drawing and in the sidebar.
Select Boundary:
Click to select a closed entity including Circle, Rectangle, Polygon, or Closed Polyline.
The area is displayed on the drawing and in the sidebar.