That doesnt look like a very accurate measurement from PostGIS. What
happens if you try?
SELECT ST_Area(the_geog,true) As sqm_spheroid
FROM (SELECT
geography(
ST_GeomFromText( 'POLYGON((50 0,-60 -5, -30 -30,50 0))',
)
) As x(the_geog);
This should be comparable with getgeodesicArea in OL.
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