Answer:
I am not sure how your figure is, but I am using one of mine figure.
<1 is corresponding with <5.
<2 is corresponding with <6.
<3 is corresponding with <7.
<4 is a corresponding angle with the given angle.
<5 and <7 are vertical to the given angle.
<6 is a supplementary to the given angle.
I am not sure if answer is right, but hopw this helps, thank you :) !!
