Project surface area

Hi,

I am working on the mold model and I am trying to find the surface projected area on the parting line but I am not sure how can I do that, I tried convert entities method that someone has posted few weeks back. In addition, I also tried using derived sketch technique. Unfortunately none of these technique worked for me, Is there's any effective way or method to measure projected surface area of the complex geometries. Looking forward for response from anyone out there who can help.

Regards,

Irtiza

SolidworksGeneral