way for the first unification of China in 221 BC. the Zhou as the supreme political power in China. themselves considered this victory to be the beginning of their dynastic reign. The Zhou dynasty is subdivided into two periods: the Western and Eastern Zhou.
Adjacent angles are two angles that have a common vertex and a common side. The vertex of an angle is the endpoint of the rays that form the sides of the angle. When we say common vertex and common side, we mean that the vertex point and the side are shared by the two angles. Here's an example of adjacent angles: In this diagram, point A is the vertex of all of the angles shown.
Angle pairs deals with two angles. There are different types of angle pairs. Two angles which has one line in common is called as angle pairs. In angle pairs, the two angles are related to each other.These are complementary angle, supplementary angle, vertical angle, Alternate interior angles, Alternate exterior angles and Corresponding angles.ere, $\angle$ MOP is supplementary angle because, $\angle$ MON + $\angle$ NOP = 180 degrees. Vertical Angles: When two lines intersect each other, angle pairs are formed. In this type of angles, the angles in the opposite direction is said to be vertical angle.