Vertical Angles Corresponding Angles Alternate Interior Angles Or Alternate Exterior Angles. Alternate exterior angles are equal to one. Learn how to identify corresponding angles alternate interior angles alternate exterior angles and consecutive interior angles in this free math video tut.
In review vertical angles are angles formed by the intersection of two lines while alternate interior angles alternate exterior angles corresponding angles and consecutive interior angles are. No matter what the diagram looks like each pair of vertical angles will always have the same measurement. Similar to before angles 1 2 7 and 8 are EXTERIOR angles.
Exterior angles are also created by a transversal line crossing 2 straight lines.
In review vertical angles are angles formed by the intersection of two lines while alternate interior angles alternate exterior angles corresponding angles and consecutive interior angles are formed by the intersection of two lines and a transversalDetermining if angles are vertical requires simple observation while determining other angle relationships can be done by asking yourself three questions. Look at the blue lines demonstrating the shape - the Z may be back to front as in the second example but the principle is the same. Alternate exterior angles are equal to one. As mentioned earlier a pair of vertical angles will always be congruent.