How to convert geometry into latitude and longitude coordinates?

What kind of encoding is it....    there must be some description.

These are the hex values, very long sized characters and numbers. (they are polygons or lines)

values are stored in postgresdatabase which i downloaded as csv and then i am  trying using postgis. (ST_AsText which Returns the Well-Known Text (WKT) representation of the geometry/geography)

Best starting point will be to have one of your strings along with the related lat/long values.

This will tell you how to decode the string.

Without this correlation/relation as a string point, tough to guess about what your string might represent.

length of the strings vary as few are 50 characters long,  others are 20 long. they are polygons and lines. I tried

SELECT ST_AsText('01030000000100000005000000000000000000
0000000000000000000AB7600000000000000000000000
F03F000000000000F03F000000000000F03F000000000000F03
F0000000078540000000HFT000');

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which converts it into

POLYGON((0 0,0 1,1 1,1 0,0 0))

not sure how to extract lat/long values from this.

There must be more data that is correlated. A Polygon is a geometric shape, with multiple corners.   (0,0)->(0,1)->(1,1)->(1,0)->(0,0).. which draws a closed square with size 1.
it doesn't tell where the square should be on the map.

Data represents field maps of an agricultural field, represents fields, zones in a farm.

Thanks noci. I got it solved using shapely python library.