Calculating Area, Perimeter, and Length in ArcGIS 10

In ArcGIS if you happened to calculate any Area or perimeter, it very easy to calculate the area and perimeter for polygon features and the length for line features. This is accomplished using the Calculate Geometry function in an attribute table.

-          Open ArcGIS 10 and start your project.

-          Open the layer’s attribute table.

-          Go to left corner of the attribute table and choose add field.

-          Right-click on the name of the attribute in question (e.g., Area) and choose Calculate Geometry

-          Choose the layer you want to calculate, coordinate system and the units. Then press OK.

-          Do the same for any other fields for necessary calculations (length, perimeter)