Vertical Angles

Front

What are vertical angles?

Back

Vertical angles are the angles opposite each other when two lines intersect. They are always congruent, meaning they have the same measure.

Front

If one angle measures 155 degrees, what is the measure of its vertical angle?

Back

155 degrees.

Front

What is the relationship between vertical angles?

Back

Vertical angles are congruent.

Front

If angle 1 measures 40 degrees, what is the measure of angle 2, its vertical angle?

Back

40 degrees.

Front

What is the measure of angle 2 if angle 1 measures 117 degrees?

Back

117 degrees.

Front

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

Back

The sum of their measures is 180 degrees.

Front

What is the measure of angle 1 if angle 2 measures 63 degrees?

Back

63 degrees.

Front

If angle 1 measures 25 degrees, what is the measure of angle 2, its vertical angle?

Back

25 degrees.

Front

What do we call angles that are formed when two lines intersect?

Back

Vertical angles.

Front

If angle 1 measures 73 degrees, what is the measure of angle 2, its vertical angle?

Back

73 degrees.