Vertical Angles

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always congruent (equal in measure).

Front

Vertical angles are always:

Back

Congruent (equal measures).

Front

What is the sum of the measures of supplementary angles?

Back

180 degrees.

Front

If two angles are supplementary and one angle measures 72 degrees, what is the measure of the other angle?

Back

108 degrees.

Front

What is the measure of angle y if it is vertical to an angle measuring 76 degrees?

Back

76 degrees.

Front

If angle A and angle B are vertical angles, and angle A measures 37 degrees, what is the measure of angle B?

Back

37 degrees.

Front

What is the relationship between adjacent angles?

Back

Adjacent angles share a common side and vertex but do not overlap.

Front

If angle C measures 20 degrees, what is the measure of its supplementary angle?

Back

160 degrees.

Front

What do you call angles that add up to 90 degrees?

Back

Complementary angles.

Front

If two angles are complementary and one angle measures 34 degrees, what is the measure of the other angle?

Back

56 degrees.