Refinement of triangles I have given the triangulation in black:



The task is to refine the two triangles on the top (left) in 4 congruent triangles each. I have done this in red colour. 

In addition to that, there should not be any hanging nodes. I tried this using the violet colour. Is this correct, or is there any fault? 

Thanks in advance for checking my draft. 

Corrected version:
This is it maybe if I figured out your question correctly.
This is it maybe if I figured out your question correctly.