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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?

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QGIS will solve most of your problems. Please download the tutorial PDF of QGIS.

You can also get any measure area lengths in Autocad. Just insert you data in Connect in the home page of Autocad. Run Area or Lengths calculation Query.

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