Hi guys,
trying to work out the following
I have created a list of GeoLocations and I would like to create a simple system that tells me if a person is inside the area of the GeoLocation I have set for e.g.

If a person it in the area of
144.30'39.82/-38.16'22.00 by with of 144.31'12.99/-38.16'16.20
by
144.30'41.77/-38.16'37.09 by with of 144.31'12.74/-38.16'33.05

so if a person is in that area I want to show that info.

I have the script that collects the GeoLocation but not away to know if a person is in an area.

EDIT: Here is the picture of the area I want.