I have 8 shapefiles which have a common coordinate system but none of them have it defined i.e. "unknown" is written when I look in the properties dialog box. However, I can see the extent which I am sharing here:
Top: 42.349145 Bottom: 41.710962 Right: -82.430463 Left: -83.126193
I need to define the projection of these shapefiles so that I could do further analysis. I know that the features these shapefiles represent are located in Windsor, Ontario i.e.they should have a projection of WGS 84 UTM Zone 17N. Can I directly define this projection without knowing about the geographic coordinate system?