Answer:
AI-generated answer
The special angle pair relationship between 1 and 2 is complementary.
Complementary angles are two angles that add up to 90 degrees. In this case, if angle 1 measures x degrees, then angle 2 would measure 90 degrees minus x. Similarly, if angle 2 measures y degrees, then angle 1 would measure 90 degrees minus y.
For example, if angle 1 measures 40 degrees, then angle 2 would measure 90 degrees minus 40, which is 50 degrees. And if angle 2 measures 60 degrees, then angle 1 would measure 90 degrees minus 60, which is 30 degrees.
So, in summary, complementary angles are a special pair of angles that add up to 90 degrees.