Complementary, Supplementary & Vertical Angles

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

What is the relationship between vertical angles?

Back

Vertical angles are always congruent (equal measures).

Front

Define complementary angles.

Back

Two angles that add up to 90 degrees.

Front

Define supplementary angles.

Back

Two angles that add up to 180 degrees.

Front

If two angles are complementary and one angle measures 30 degrees, what is the measure of the other angle?

Back

60 degrees.

Front

If two angles are supplementary and one angle measures 110 degrees, what is the measure of the other angle?

Back

70 degrees.

Front

True or False: Vertical angles are never equal.

Back

False.

Front

What is the measure of vertical angles if one angle measures 45 degrees?

Back

45 degrees.

Front

If two lines intersect and form angles of 3x and 5x, what is the value of x?

Back

x = 18 degrees.

Front

What do you call angles that are adjacent and form a straight line?

Back

Linear pair.