title: How to calculate coordinates of third point in a triangle (2D) knowing 2 points coordinates, all lenghts and all angles
body: <p>I have a triangle and I know the coordinates of two vertices: A=(x1,y1),B=(x2,y2)
  All the angles: ABC=90∘,CAB=30∘ and BCA=60∘ and all the edge lengths. How can I find the coordinates of the third vertex C=(x3,y3)?</p>
  
  <p>I know there are two solutions (I want both).</p>