UNIT 2- GEOMETRY VOCABULARY

What is the definition of parallel lines?

• Lines that intersect at a right angle

• Lines that never intersect

• Lines that share a vertex and a side

• Lines that have a sum of 90°

Which term describes lines that intersect at a right angle?

• Parallel lines

• Vertical angles

• Perpendicular lines

• Adjacent angles

What are vertical angles?

• Angles that share a vertex and a side

• Angles that are opposite and congruent, formed by two intersecting lines

• Angles that have a sum of 180°

• Angles on opposite sides of the transversal inside the two lines

What are adjacent angles?

• Angles that share a vertex and a side

• Angles that have a sum of 90°

• Angles on opposite sides of the transversal outside the two lines

• Angles that intersect at a right angle

What is the definition of complementary angles?

• Angles that have a sum of 180°

• Angles that are adjacent

• Angles that have a sum of 90°

• Angles on opposite sides of the transversal inside the two lines

What are supplementary angles?

• Angles that have a sum of 90°

• Angles that are adjacent

• Angles that have a sum of 180°

• Angles on opposite sides of the transversal outside the two lines

What is a linear pair?

• A line that intersects two or more (usually parallel) lines

• Angles that have a sum of 90°

• Angles that are adjacent

• Angles that share a vertex and a side

What is a transversal?

• A line that intersects two or more (usually parallel) lines

• Angles that have a sum of 180°

• Angles that share a vertex and a side

• Angles that are opposite and congruent

What are alternate interior angles?

• Angles on opposite sides of the transversal inside the two lines

• Angles on opposite sides of the transversal outside the two lines

• Angles that have a sum of 90°

• Angles that are adjacent

What are alternate exterior angles?

• Angles on opposite sides of the transversal inside the two lines

• Angles on opposite sides of the transversal outside the two lines

• Angles that have a sum of 180°

• Angles that are adjacent