Alternate Angles

 Alternate Angles: If a straight line intersects two or more parallel lines, then it is called  a transversal line. Alternate angle is a pair of angles with distinct angular points and lie on opposite sites of a transversal line and the interior region of  parallel lines.

In figure, ∠AGH = Alternate angle ∠GHD

          ∠BGH = Alternate angle ∠GHC

Alternate Angles: The angles which are formed inside the two parallel lines, when intersected by a transversal, are equal to its alternate pairs. These angles are called alternate interior angles. Alternate angles are always equal.

Alternate Angles: When two straight lines are cut by a transversal, then the angles formed on the opposite side of the transversal with respect to both the lines are called Alternate Angles. Hence, it is those angles that have different vertices and lie on the alternate sides of the transversal. Alternate angles are always equal. 

Characteristics of Alternate Angles:

1. have distinct angular point.

2. lie on opposite sides of the transversal line and

3. the interior region of  parallel lines.

4. the alternate angles are always equal.