Angle Pairs

Same-Side Interior Angles are pairs of angles that lie on the same side of a transversal and between two parallel lines. They are supplementary, meaning their measures add up to 180 degrees.

Alternate Interior Angles are pairs of angles that lie on opposite sides of a transversal and inside two parallel lines. They are congruent, meaning they have equal measures.

Corresponding Angles are pairs of angles that are in the same position on two parallel lines in relation to a transversal. They are congruent.

Supplementary Angles are two angles whose measures add up to 180 degrees. They can be adjacent or non-adjacent.

Vertical Angles are pairs of opposite angles formed by the intersection of two lines. They are congruent.

Same-Side Interior Angles are supplementary, meaning their measures add up to 180 degrees.

Alternate Interior Angles are congruent when the lines are parallel.

Alternate Exterior Angles are pairs of angles that lie on opposite sides of a transversal and outside two parallel lines. They are congruent.

Same-Side Exterior Angles are pairs of angles that lie on the same side of a transversal and outside two parallel lines. They are supplementary.

A Linear Pair of Angles consists of two adjacent angles that form a straight line. They are supplementary.