Exercise

Area in km squared, geometry in decimal degrees

In this exercise, you'll start again with the council_districts GeoDataFrame and the permits DataFrame. You will change the council_districts to use the EPSG 3857 coordinate reference system before creating a column for area. Once the area column has been created, you will change the CRS back to EPSG 4326 so that the geometry is in decimal degrees.

Instructions

100 XP

Change the coordinate reference system for the council_districts to EPSG 3857, and print the crs and first two rows again.
Create a column called area. Divide the area of each polygon by sqm_to_sqkm to get the area in kilometers squared.
Change the coordinate reference system for the council_districts back to EPSG 4326. Print the crs and first two rows.