Question

Which pair of angles is supplementary?

∠RXZ and ∠YXZ
∠PXQ and ∠RXS
∠YZX and ∠UZT
∠WZX and ∠XYZ
Lines P S and W T are horizontal and parallel. Lines V R and Q R are diagonal and intersect lines P S and W T to form triangle X Y Z.

Answer 1

∠RXZ and ∠YXZ

They share vertex X and side XZ, and their other sides (XR and XY) form a straight line, so the two angles are a linear pair and sum to 180° (supplementary).