Complementary Supplementary Vertical & Adjacent Angles

Front

What are complementary angles?

Back

Two angles that add up to 90°.

Front

What are supplementary angles?

Back

Two angles that add up to 180°.

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

What are adjacent angles?

Back

Angles that share a common side and vertex.

Front

If ∠A and ∠B are complementary, and ∠A = 30°, what is ∠B?

Back

∠B = 60°.

Front

If ∠C and ∠D are supplementary, and ∠C = 110°, what is ∠D?

Back

∠D = 70°.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always equal.

Front

If two angles are supplementary and one angle measures 45°, what is the measure of the other angle?

Back

The other angle measures 135°.

Front

What is the sum of the measures of complementary angles?

Back

90°.

Front

What is the sum of the measures of supplementary angles?

Back

180°.