Types of lines and Angle Pair

Front

What is a linear pair?

Back

Two angles that are adjacent (share a ray) and are supplementary (+ 180).

Front

What are supplementary angles?

Back

Two angles that add to 180 degrees.

Front

What are complementary angles?

Back

Two angles that add to 90 degrees.

Front

What are vertical angles?

Back

Two angles that share a vertex but are not adjacent. They are equal to each other.

Front

What are congruent angles?

Back

Two angles with the same measure (arc marks).

Front

What are parallel lines?

Back

Lines that do not intersect.

Front

What are perpendicular lines?

Back

Lines that intersect to form right angles.

Front

What are intersecting lines?

Back

Lines that intersect at one point.

Front

What are coinciding lines?

Back

Lines that overlap (coexist in the same place).

Front

Name the type of lines

Back

Parallel Lines