G: What type of angle relationship is it?

Front

What is the definition of complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What is the definition of a linear pair?

Back

A linear pair consists of two adjacent angles that form a straight line, meaning their measures add up to 180 degrees.

Front

What is the definition of vertical angles?

Back

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

Front

What is the definition of adjacent angles?

Back

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

Front

If angle A is 30 degrees, what is the measure of its complementary angle?

Back

60 degrees (90 - 30 = 60).

Front

If angle B is 120 degrees, what is the measure of its supplementary angle?

Back

60 degrees (180 - 120 = 60).

Front

What is an example of a pair of complementary angles?

Back

81° and 9°.

Front

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

Back

180 degrees.

Front

If two angles are vertical angles, what can we say about their measures?

Back

They are equal.

Front

What is the relationship between adjacent angles?

Back

Adjacent angles share a common side and vertex.