Rosensteel's Complementary and Supplementary angles

Front

These angles are...

Back

Complementary

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

Supplementary angles always add up to

Back

180

Front

Complementary angles always add up to $90^{\circ}$

Back

90 degrees

Front

What is the value of "a"?

Back

45

Front

Find the value of 7x.

Back

70

Front

If x = 19, what do these angles measure? Options: 126° and 54°, 135° and 45°, 160° and 20°, 115° and 65°

Back

126° and 54°