Vertical and Adjacent Angles

Front

What is a complementary angle?

Back

Two angles whose sum is 90 degrees.

Front

Vertical angles are always:

Back

Congruent.

Front

What is the value of x if ∠A + ∠B = 90° and ∠A = 53°?

Back

37.

Front

Name the vertical angle to ∠h.

Back

∠f.

Front

Find the value of x if 2x + 5 = 43.

Back

19.

Front

What are adjacent angles?

Back

Angles that share a common side and vertex.

Front

What is the sum of angles on a straight line?

Back

180 degrees.

Front

What is the relationship between vertical angles?

Back

They are equal in measure.

Front

If two angles are complementary, what is their sum?

Back

90 degrees.

Front

If ∠1 and ∠2 are vertical angles, what can we say about their measures?

Back

They are equal.