Question

linear pair
two adjacent angles that form a straight line. these angles are also supplementary.
supplementary angles
two angles whose measures have a sum of 180 degrees
complementary angles
two angles whose measures have a sum of 90 degrees

Explanation:

Linear pair: adjacent, form straight - line, supplementary. Supplementary angles: sum to 180°. Complementary angles: sum to 90°.

Answer:

Linear Pair: Two adjacent angles that form a straight line. These angles are also supplementary.
Supplementary Angles: Two angles whose measures have a sum of 180 degrees.
Complementary Angles: Two angles whose measures have a sum of 90 degrees.