Mallette Review Complementary & Supplementary Angles

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that 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 relationship between adjacent angles that are supplementary?

Back

They share a common side and their non-common sides form a straight line.

Front

If two angles are complementary, what can you conclude about their measures?

Back

The sum of their measures is 90 degrees.

Front

If two angles are supplementary, what can you conclude about their measures?

Back

The sum of their measures is 180 degrees.

Front

What is the measure of angle 1 if angle 2 is 45 degrees and they are complementary?

Back

Angle 1 is 45 degrees (90 - 45 = 45).

Front

What is the measure of angle 3 if angle 4 is 75 degrees and they are supplementary?

Back

Angle 3 is 105 degrees (180 - 75 = 105).

Front

Solve for x: 2x + 3 = 7.

Back

x = 2.