Unit 2- Line and Angle Relationships Vocab

Front

Complementary Angles

Back

Two angles whose measures sum to 90 degrees.

Front

Supplementary Angles

Back

Two angles whose measures sum to 180 degrees.

Front

Adjacent Angles

Back

Two angles that share a common vertex and side; angles that are next to each other.

Front

Vertical Angles

Back

Two angles whose sides form two pairs of opposite rays. Their measures are congruent.

Front

Linear Pair

Back

Two angles whose noncommon sides are opposite rays. Their measures add to 180 degrees.

Front

Transversal

Back

A line that intersects two or more coplanar lines at different points.

Front

Alternate Interior Angles

Back

Two angles that lie between the two lines and on opposite sides of the transversal. Their measures are congruent.

Front

Alternate Exterior Angles

Back

Two angles that lie outside of the two lines and on opposite sides of the transversal. Their measures are congruent.

Front

Consecutive Interior Angles

Back

Two angles that lie between the two lines and on the same side of the transversal. They are a linear pair.

Front

Corresponding Angles

Back

Two angles that have the same position. Their measures are congruent.