Angle Pairs Review

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If angle A is 30 degrees, what is the measure of its complementary angle?

Back

60 degrees (90 - 30 = 60).

Front

If angle B is 120 degrees, what is the measure of its supplementary angle?

Back

60 degrees (180 - 120 = 60).

Front

What is the value of x if angle C and angle D are complementary and angle C = 35 degrees?

Back

55 degrees (90 - 35 = 55).

Front

What is the value of x if angle E and angle F are supplementary and angle E = 75 degrees?

Back

105 degrees (180 - 75 = 105).

Front

In a right triangle, what is the measure of the non-right angles?

Back

The two non-right angles are complementary, adding up to 90 degrees