Identifying Angle Relationships (Shorter)

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are vertical angles?

Back

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

Front

What are adjacent angles?

Back

Two angles that share a common side and a common vertex.

Front

What are same side interior angles?

Back

Angles that are on the same side of the transversal and inside the two lines.

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.

Front

What is a linear pair of angles?

Back

A pair of adjacent angles that are formed when two lines intersect; they are supplementary.

Front

If angle A and angle B are complementary, and angle A measures 30 degrees, what is the measure of angle B?

Back

Angle B measures 60 degrees.

Front

If angle C and angle D are supplementary, and angle C measures 110 degrees, what is the measure of angle D?

Back

Angle D measures 70 degrees.