Unit 3 Vocab Review

What are corresponding angles?

• Angles whose sum measures 180 degrees
• Angles whose sum measures 90 degrees
• Two angles in the same position when parallel lines are cut by a transversal
• The angles opposite of each other when two lines cross.

Tags

CCSS.8.G.A.5

What are perpendicular lines?

• Two lines that cross at exactly one point

• Lines in the same plane that never intersect

• A line that intersects two or more lines

• Lines that intersect to form a 90 degree angle

What are parallel lines?

• Lines that intersect to form a 90 degree angle

• Lines in a same plane that do not intersect

• A line that intersects 2 or more lines

• Lines that intersect at one point

What is a transversal?

• A line that intersects two or more lines

• The angles opposite of each other when two lines cross

• Two angles whose sum measures 180 degrees

• Lines that intersect to form a 90 degree angle

What are alternate interior angles?

• A pair of angles on the outside of two lines cut by a transversal, but on opposite sides of the transversal

• The angles opposite of each other when two lines cross

• A pair of angles on the inside of two lines cut by a transversal, but on opposite sides of the transversal

• Two angles in the same position when parallel lines are cut by a transversal

What are alternate exterior angles?

• A pair of angles on the outer side of two lines cut by a transversal, but on opposite sides of the transversal

• The angles opposite of each other when two lines cross

• A pair of angles on the inner side of two lines cut by a transversal, but on opposite sides of the transversal

• Two angles in the same position when parallel lines are cut by a transversal

What are vertical angles?

• The angles inside the transversal that are not adjacent to the exterior angle

• Congruent angles opposite of each other when two lines intersect

• The angles inside of perpendicular lines

• Two angles whose sum measures 90 degrees

What are supplementary angles?

• Two angles whose sum measures 180 degrees

• Two angles whose sum measures 90 degrees

• Two angles in the same position when parallel lines are cut by a transversal

• The angles inside the triangle that are not adjacent to the exterior angle

If lines are parallel, then alternate interior angles are _____________

• congruent
• parallel
• complementary
• supplementary

Tags

CCSS.8.G.A.5

For alternate exterior angles to be congruent, the two lines must be _____________

• congruent
• parallel
• perpendicular
• bisectors

Tags

CCSS.8.G.A.5