It looks like you're requirement is to create Angular Ordinate Dimensions (or Angular Running Dimensions), which is a current limitation of NX. Existing Enhancement (ER) 7322951 asks for this functionality. Similarly you can't create Chain or Baseline Angular dimensions (ER 2241378).
While Angular Ordinate/Running Dimensions can be mimicked it's probably not worth the time and effort to do so - it would be much quicker to create regular Angle dimensions. Here's a mimicked example using manual dimensions and associating the appended text with sketch dimensions (amongst other things):