Congruent and Supplementary Angle Relationships

Front

What are congruent angles?

Back

Angles that have the same measure.

Front

What are supplementary angles?

Back

Two angles whose measures add up to 180 degrees.

Front

If two angles are congruent, what can we say about their measures?

Back

Their measures are equal.

Front

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

Back

150 degrees.

Front

What is the relationship between complementary angles?

Back

Two angles whose measures add up to 90 degrees.

Front

If angle B is 45 degrees, what is the measure of its complementary angle?

Back

45 degrees.

Front

How do you find the value of x in a problem involving supplementary angles?

Back

Set up the equation: x + y = 180, where y is the measure of the other angle.

Front

If angle C is 70 degrees, what is the value of x if angle C and angle D are supplementary?

Back

x = 110 degrees.

Front

What is the sum of the measures of two supplementary angles?

Back

180 degrees.

Front

If two angles are supplementary and one angle measures 90 degrees, what is the measure of the other angle?

Back

90 degrees.