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How can I measure area from geographic coordinates?
I created my spatial tables in WGS-84 with SRID:4326, I want to transform them to UTM Projection to measure length and areas.Plz Explain.. Is it possible to measure area lengths of spatial features in WGS-1984? another my doubt is in postgis can we store coordinates only in decimal degreed system ? is there way to store in utm projection?