Angle relationships

Front

What are angle relationships?

Back

Angle relationships refer to the ways in which angles interact with each other when lines intersect or are parallel, including concepts like complementary, supplementary, vertical, and corresponding angles.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect; they are always equal.

Front

What are corresponding angles?

Back

Angles that are in the same position on two parallel lines cut by a transversal; they are equal.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two lines; they are equal when the lines are parallel.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside the two lines; they are equal when the lines are parallel.

Front

If ∠COB is 124°, what is ∠BOD?

Back

∠BOD is 56°, and they are supplementary.

Front

Identify the angle relationship: ∠ADE and ∠BCE are equal and on opposite sides of the transversal.

Back

Vertical Angles.

Front

Identify the angle relationship: ∠1 and ∠2 are on the same side of the transversal and inside the parallel lines.

Back

Consecutive Interior Angles.