HOW TO PROJECT A True Projection Of A RED Angle

The part is a bent sheet metal with an opening of 2°. The marked kurves are part of sloped common lines/surfaces defined at the blank (see my marks in green and red).

You can use a 3Dprogram with a sheet metal module or a 2D program, where you have to costruct some points with projection lines defined at their appropriate view positions and connect them e.g. with a spline curve

thanks sir