Certain angle pairs receive special names based on the relative position one to the other or based on the sum of the their respective measures. Here explain some Special Angles like Adjacent angles and Vertical angles. Adjacent angles are any kind of two angles that share a typical side separating the two angles which share a common vertex. Throughout Figure 1, ∠1 and ∠2 are adjacent aspects. Vertical angles are formed when two lines intersect and form four angles. Any two of those angles that are certainly not adjacent angles are known as vertical angles. Here also discuss on Complementary angles and Supplementary angles.