Question

Which relationship describes angles 1 and 2

A. Vertical angles

B. Complementary angles

C. Adjacent angles

D. Supplementary angles

Answer 1

a. Vertical angles.

Complementary angles are adjacent angles that add to equal 90 degrees.
Adjacent angles are angles that share a side (they are right next to each other).
Supplementary angles are adjacent angles that add to equal 180 degrees.

Thus the answer is A.

Hope this helps.