Alternate Interior Exterior Corresponding Angles at Exterior

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Alternate Interior Exterior Corresponding Angles. We have two parallel lines, and our task here is to prove that y= 122° by using the theorem explained above. This means 122° + angle x = 180°.


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If two lines in a plane are cut by a transversal so that any pair of alternate. These angles are called alternate interior angles. In the diagram below, transversal l intersects lines m and n.

This is the same for angles k and y. Corresponding angles are just one type of angle pair. Angle pairs alternate interior alternate exterior corresponding same side interior same side exterior. Alternate interior angles are a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal.