I am working on a shapefile that I have has several polygons. Please could you help me how do I add a field columns named "area_sqkm" and how do I calculate "area" for each polygon shapefile?

Thank you very much! HienLe

I am working with a shapefile that has many polygons.

How do I add one more field named "area_sqkm" and calculate area for each polygon in the shapefile?

I am working with a shapefile that has many polygons. Please help me add one more field named "area_sqkm" and calculate area for each polygon in the shapefile.

Thank you very much! HienLe

I am working on a shapefile that I have has several polygons. Please could you help me how do I add a field columns named "area_sqkm" and how do I calculate "area" for each polygon shapefile?

Thank you very much! HienLe

I am working with a shapefile that has many polygons. Please help me how to add one more field namely "area_sqkm" and calculate area for each polygon in the shapefile.

Thank you very much! HienLe

I am working with a shapefile that has many polygons. Please help me add one more field named "area_sqkm" and calculate area for each polygon in the shapefile.

Thank you very much! HienLe