Missing Angles and Angle Relationships

Front

What does the term 'congruent' mean?

Back

Equal

Front

What are vertical angles?

Back

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

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

If angle 1 is 55 degrees, what is angle 2 if they are supplementary?

Back

125 degrees.

Front

If angle 1 is 35 degrees, what is angle 2 if they are complementary?

Back

55 degrees.

Front

What is the sum of angles in a triangle?

Back

180 degrees.

Front

If two angles are equal, what type of angles are they?

Back

Congruent angles.

Front

What is the relationship between angles 5 and 6 if they are vertical?

Back

They are equal.

Front

If angle 2 is 145 degrees, what is angle 1 if they are supplementary?

Back

35 degrees.