alternateangle

al·ter·nate angle (ôlʹtər-nĭt, ălʹ-) Angles 3,6 and 4,5 are alternate interior angles; angles 1,8 and 2,7 are alternate exterior angles. Clarinda/Academy Artworks n.

One of a pair of nonadjacent angles on opposite sides of a transversal that cuts two lines. The angles are both exterior or both interior to the two lines.

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