Answer : The supplementary angle pairs are:
angles 1 and 8
angles 2 and 7
angles 4 and 5
angles 3 and 4
Step-by-step explanation :
Supplementary pair of angle : It is defined as a pair of adjacent angles on one side of a straight line or we can say that the supplementary angle are those angle in which the sum of two angles is equal to 180°.
In the given image, the pair of angles must be supplementary that are:
angles 1 and 8
angles 2 and 7
angles 4 and 5
angles 3 and 4
angles 1 and 2
angles 7 and 8
angles 3 and 6
angles 5 and 6
Angles 1 and 7 are the vertically opposite angles.