I have an 90 degree angle piece of sheet metal and i want togive it 2 flanges that normaly come together in a 45 degree angle.Only i want to give the flanges different heights, so the angleneeds to be different. How do get this properly done?

Thanks

edit: a picture, I made this with "convert to sheet metal" but itsnot practical. As you can see, the horizontal flange is smallerthan the vertical so the angle is smaller than 45 deg.SolidworksSheet Metal