The correct option is linear pair.
When the sum of two angles measures up to 180° then these angles are known as supplementary angles of each other. Also, a pair of linear angles are always supplementary to each other.
for example, ∠x + ∠y = 180°, therefore, the ∠x and ∠y are the supplementary angles of each other.
The non-shared sides of two adjacent angles form a pair of opposite rays. The angles are _________.
Looking at the image below the correct option is supplementary angles or linear pair of angles.
Hence, the correct option is linear pair.
Learn more about Linear pairs:
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