G: What type of angle relationship is it?

Front

What is a vertical angle?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always equal.

Front

What is a complementary angle?

Back

Complementary angles are two angles whose sum is 90 degrees.

Front

What is a linear pair of angles?

Back

A linear pair of angles are two adjacent angles that form a straight line, and their sum is 180 degrees.

Front

What does it mean for angles to be adjacent?

Back

Adjacent angles are two angles that share a common side and a common vertex but do not overlap.

Front

If one angle is 30 degrees, what is its complementary angle?

Back

The complementary angle is 60 degrees (90 - 30 = 60).

Front

If two angles form a linear pair and one angle is 120 degrees, what is the other angle?

Back

The other angle is 60 degrees (180 - 120 = 60).

Front

What is the relationship between vertical angles?

Back

Vertical angles are always equal in measure.

Front

If two angles are adjacent and one measures 45 degrees, what is the maximum measure of the other angle if they form a linear pair?

Back

The maximum measure of the other angle is 135 degrees (180 - 45 = 135).

Front

What is the sum of the measures of complementary angles?

Back

The sum of the measures of complementary angles is 90 degrees.

Front

What is the sum of the measures of angles in a linear pair?

Back

The sum of the measures of angles in a linear pair is 180 degrees.