Answer:
Angles 2 and 5
Step-by-step explanation:
Supplement angles are the angles which up to 180 degrees.
And all the angles shown are Vertically opposite angles and these angles are always the same.
Vertically opposite angles:
Angles 2 and 5
Angles 1 and 3
Angles 6 and 4
As shown in the picture, Angle 2 is 90 degrees and angle 5 being a vertically opposite angle, angle 5 is 90 degrees too.
90 + 90 = 180 degrees.
