Angle Relationships

Front

What do supplementary angles add up to?

Back

180 degrees

Front

What type of angle is less than 90 degrees?

Back

Acute angle

Front

What are adjacent angles?

Back

Angles that share a common side and vertex, and do not overlap.

Front

What is the relationship between vertical angles?

Back

Vertical angles are equal.

Front

What do complementary angles add up to?

Back

90 degrees

Front

What type of angle is exactly 90 degrees?

Back

Right angle

Front

What is a linear pair of angles?

Back

Two adjacent angles that form a straight line and add up to 180 degrees.

Front

If angle 2 is 40 degrees, what is the measure of its supplementary angle?

Back

140 degrees

Front

If angle 1 is 70 degrees, what is the measure of its complementary angle?

Back

20 degrees

Front

What are vertical angles?

Back

Angles that are opposite each other when two lines intersect.