Angle pairs, online practice answers
1. Corresponding angles: Angles in the same relative position on two different lines that are crossed by a transversal. Corresponding angles are congruent.
2. Vertical angles: Angles formed by two intersecting lines that are opposite each other. Vertical angles are congruent.
3. Alternate interior angles: Angles formed on opposite sides of the transversal and inside the two lines. Alternate interior angles are congruent.
4. Alternate exterior angles: Angles formed on opposite sides of the transversal and outside the two lines. Alternate exterior angles are congruent.
5. Same side interior angles: Angles formed on the same side of the transversal and inside the two lines. Same side interior angles are supplementary.
6. Same side exterior angles: Angles formed on the same side of the transversal and outside the two lines. Same side exterior angles are supplementary.