Finding Missing Angles

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

The angle relationship shown is -

Back

Supplementary angles.

Front

The angle relationship shown is -

Back

Complementary angles.

Front

∠1 and ∠3 can best be described as -

Back

Vertical angles.

Front

What are vertical angles?

Back

Angles that are opposite of each other when two lines intersect.

Front

What is the sum of two complementary angles?

Back

90°.

Front

What is the sum of two supplementary angles?

Back

180°.

Front

If one angle is 30°, what is its complementary angle?

Back

60°.

Front

If one angle is 110°, what is its supplementary angle?

Back

70°.