Question

two angles that share a side are called: adjacent angles vertical angles supplementary angles complementary angles

Explanation:

Adjacent angles are defined as two angles that share a common side and a common vertex. Vertical angles are formed by two intersecting lines and are opposite each other. Supplementary angles add up to 180 degrees and complementary angles add up to 90 degrees. Based on the definition, the answer is adjacent angles.

Answer:

adjacent angles