Also is the tri-angular portion of the track at the start and finish of the pit lane a seperate area or is it counted as being part of the same area as the inside one of the track itself.
This has been answered in the official forum (see link above):
The triangular areas at the start and end of the pit area are part of the space on the race track, and not part of the pit - and not individual spaces. A car cannot stay in the half-space.
It is there purely for aesthetic reasons.