Angular Dimension OR Angle of Rotation for a Parallel Shape? IN X7

Please Help!!

Which tool should I Use in order to Make Correct ANGLES for my Parallel Shape? In X7

I tried to rotate the lines with the "Angle of Rotation" on the Property bar, and also tried the "Angular Dimension Tool" on the toolbar. But each shows me different dimensions...

How should I build this parallel shape?

can someone tell me step by step, please? I've never done a shape with angular degrees dimensions... 

Thank you.