Linear Pair, Vertical Angles, Complementary Angles

Front

What is a Linear Pair?

Back

A Linear Pair is a pair of adjacent angles formed when two lines intersect. The sum of the angles in a linear pair is always 180 degrees.

Front

What are Vertical Angles?

Back

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

Front

What are Complementary Angles?

Back

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

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 45 degrees, what is the measure of its supplementary angle?

Back

135 degrees (180 - 45 = 135).

Front

What is the relationship between angles t and r if they are Vertical Angles?

Back

Angles t and r are equal in measure.

Front

If angle k is part of a Linear Pair and measures 62 degrees, what is the measure of the other angle?

Back

118 degrees (180 - 62 = 118).

Front

What is the sum of the measures of two angles that are Complementary?

Back

90 degrees.

Front

If angle p is 21 degrees and is part of a Complementary Angle pair, what is the measure of the other angle?

Back

69 degrees (90 - 21 = 69).

Front

What is the sum of the measures of two angles that are Supplementary?

Back

180 degrees.