Angle Relationships

Front

What are Adjacent Angles?

Back

Angles that share a common side and a common vertex, but do not overlap.

Front

What are Linear Pair Angles?

Back

A pair of adjacent angles whose non-common sides form a straight line, totaling 180 degrees.

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 always congruent (equal in measure).

Front

What is the relationship between Vertical Angles?

Back

Vertical angles are always congruent (equal measures).

Front

If angle 2 is 50 degrees, what is the measure of its vertical angle?

Back

50 degrees (vertical angles are equal).

Front

What are Alternate Interior Angles?

Back

Angles that are on opposite sides of a transversal and inside the two lines.

Front

What are Corresponding Angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

Front

What is the sum of the angles in a Linear Pair?

Back

180 degrees.