Starter relay position ?

I own an Envoy XL 4.2 2003.

I had to change the starter relay (in the engine fuse box) but, i am not sure that the guy installed it properly. Could someone tell me where the angled corner is supposed to be:

Is it facing the passanger side or the front left of the truck ?

Also, is the rear blower in the back on the opposite side of the air pump ?

Thanx for the help :)

If it is a 4 legged relay and the coil terminals are on a diagonal and the "switched" terminals are on a diagonal-- then it is "idiot-proof" you can't put it in wrong- since it will work in either direction...