Angle Relationships

In the picture, Lines X and Y are _____ lines, and Line T is a transversal that intersects them.

• parallel

• perpendicular

• vertical

• regular

In the picture, Lines X and Y are parallel lines, and Line T is a _____ that intersects them.

• parallel

• congruent

• angle

• transversal

_____ angles form a straight line and add up to 180 degrees.

• Supplementary

• Congruent

Angles that have the same measure are called _____ angles.

• supplementary

• congruent

Pairs of opposite angles formed by intersecting lines.

• vertical

• corresponding

• alternate interior

• alternate exterior

Angles that are outside the parallel lines and on opposite sides of the transversal

• Alternate Interior

• Vertical

• Alternate Exterior

• Corresponding

Angles in the same relative position; angles in "matching corners."

• Vertical

• Alternate Interior

• Corresponding Angles

• Alternate Exterior

Angles inside the parallel lines and on opposite sides of the transversal.

• Corresponding

• Vertical

• Alternate Interior

• Alternate Exterior

What is the relationship between these two angles?

• Congruent

• Supplementary

What is the measure of angle D?

• 100°

• 80°

• 180°

• 90°