Angle Relationships & Geometry Basics

Front

What do we call angles or line segments that have the same measure?

Back

Congruent

Front

What is the measure of the missing angle if one angle is 128 degrees?

Back

52 degrees

Front

What is an example of a pair of complementary angles?

Back

81° and 9°

Front

What angle is adjacent and supplementary to angle 5 if angle 5 is 125 degrees?

Back

∠1 (which is 55 degrees)

Front

What do we call a 'hypothesis' in math class?

Back

Conjecture

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees.

Front

What is a vertical angle?

Back

Angles opposite each other when two lines intersect; they are congruent.

Front

What is an adjacent angle?

Back

Two angles that share a common side and vertex.