I have an older 70s inground grecian pool. Roughly 36.6x17.6. Currently has no coping on it and the type it used to have resembled that of a above ground deck coping. The steel forms that surround the pool are 6" wide at the top so I want to try and screw down the aluminum cinderella sloped coping that you guys provide. I'm having a hard time getting all of the measurements together for it it but ive calculated that I need roughly 98ft of it with the angled cuts that you provide. My question is, on the 135 degree angled cuts where it says 12" legs does that mean that it covers 2ft? Any help would be greatly appreciated. Thank you!