Answer:
∠1 and ∠2 are complementary and Adjacent angles .
Explanation:
Definition of complementary angles
Two Angles are said to be Complementary when they add up to 90 degrees .
As given
∠1 + ∠2 + 90° = 180°
(By using the linear pair property)
∠1 + ∠2 = 180° - 90°
∠1 + ∠2 = 90°
Definition of Adjacent angles
Two angles are Adjacent when they shares common side and a common vertex .
As shown in the figure
∠1 and ∠2 shares the common side and a common vertex .
Therefore ∠1 and ∠2 are complementary and Adjacent angles .