Find area of a closed curve?

 From:  ed (EDDYF)
8550.1 
I need to find the area of a closed curve (no straight edges). I'm aware of the CVolume script - Does one exist to calculate the area of a 2D (planar) closed curve?

I'm using MoI for my landscape design (I use MoI for everything!) and knowing the area of various sections will allow me to purchase the correct amount of topsoil and grass seed.

Ed Ferguson