I use Convexhull tool in QGIS and there are result value :
AREA = 0.0017494390 PERIMETER = 0.1725495172
I thought the result was strange. So, I took a rough estimate of the points through the services provided by other websites and picked out the results.
Other site result : Area = 17220976.88 m^2 PERIMETER = 17030.657 m
Area value is a difference of 10^10 Perimeter value is a difference of 10^5..
I use "EPSG:4166 - Korean 1995" CRS and I also change project properties for units of distance, area. but, there are not any change.
So, I want to know what convex hull units are in QGIS and how to set other setting for ideal value.