Angle Pair Relationships

Front

What are supplementary angles?

Back

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

Front

What is the relationship between angles 4 and 1 if they are supplementary?

Back

If angles 4 and 1 are supplementary, their measures add up to 180 degrees.

Front

How do you find the missing angle when given one angle in a supplementary pair?

Back

To find the missing angle, subtract the given angle from 180 degrees.

Front

If one angle measures 47 degrees, what is the measure of its supplementary angle?

Back

The measure of its supplementary angle is 180 - 47 = 133 degrees.

Front

What is the definition of complementary angles?

Back

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

Front

If two angles are complementary, what is the sum of their measures?

Back

The sum of the measures of complementary angles is 90 degrees.

Front

What is the formula to solve for x in angle relationships?

Back

The formula depends on the relationship; for supplementary angles, use x + given angle = 180.

Front

If x + 14 = 180, what is the value of x?

Back

x = 180 - 14 = 166.

Front

What is the difference between adjacent and vertical angles?

Back

Adjacent angles share a common side and vertex, while vertical angles are opposite each other when two lines intersect.

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect, and they are always equal.