Transversals and Triangle Sum Theorems Vocabulary

Supplementary Angles

• Two angles that are congruent

• Two angles that are opposite to each other

• Two angles that are next to each other

• Two angles whose sum is 180 degrees.

Adjacent Angles

• Angles that are next to each other

• Angles that are opposite to each other

• Congruent Angles

• Supplementary Angles

Congruent

• Equal in measure

• Adds to 180 degrees

• Different in measure

Two lines that never intersect.

• Parallel Lines

• Perpendicular Lines

• Any lines

Vertical Angles

• Angles that are next to each other

• Angles that are different in measure

• Angles that are opposite to each other when two lines intersect.

A line that intersects two lines at different points.

• Parallel Line

• Transversal

• Intersecting Line

• Perpendicular Line

When a transversal intersects two parallel lines, the corresponding angles are?

• Congruent

• Vertical

• Diferent

• Supplementary

When a transversal intersects two parallel lines, the alternate interior angles are?

• Adjacent

• Vertical

• Supplementary

• Congruent

When a transversal intersects two parallel lines, the alternate exterior angles are?

• Vertical

• Congruent

• Supplementary

• Adjacent

When a transversal intersects two parallel lines, the consecutive interior angles are?

• Congruent

• Vertical

• Adajcent

• Supplementary