Angle Relationships

Front

The angles in a triangle have a sum of ______ degrees.

Back

180

Front

What is the measure of a straight angle?

Back

180

Front

What is the measure of a right angle?

Back

90

Front

What do you call angles that add up to 90 degrees?

Back

Complementary angles

Front

What do you call angles that add up to 180 degrees?

Back

Supplementary angles

Front

What are vertical angles?

Back

Angles opposite each other when two lines intersect, they are equal.

Front

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

Back

60

Front

If two angles are supplementary and one measures 120 degrees, what is the measure of the other angle?

Back

60

Front

What is the measure of an angle that is 45 degrees less than a right angle?

Back

45

Front

In a triangle, if two angles measure 50 degrees and 60 degrees, what is the measure of the third angle?

Back

70