Question

which relationships describe angles 1 and 2? select each correct answer. adjacent angles vertical angles supplementary angles complementary angles

Explanation:

• Adjacent angles share a side and vertex; angles 1 and 2 do this.
• Supplementary angles add to $180^\circ$; angles 1 and 2 form a straight line, so their sum is $180^\circ$.
• Vertical angles are opposite each other (not the case here).
• Complementary angles add to $90^\circ$ (not the case here).

Answer:

adjacent angles
supplementary angles