Angle Relationships

Front

What are supplementary angles?

Back

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

Front

Which angles are considered vertical angles?

Back

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

Front

Define alternate interior angles.

Back

Alternate interior angles are pairs of angles that lie between two parallel lines and on opposite sides of a transversal.

Front

What is the relationship between corresponding angles?

Back

Corresponding angles are angles that are in the same position on two parallel lines in relation to a transversal. They are equal in measure.

Front

What are alternate exterior angles?

Back

Alternate exterior angles are pairs of angles that lie outside two parallel lines and on opposite sides of a transversal.

Front

If angle 1 is 50 degrees, what is the measure of its supplementary angle?

Back

The supplementary angle is 130 degrees, since 180 - 50 = 130.

Front

What is the measure of vertical angles if one angle is 75 degrees?

Back

The vertical angle is also 75 degrees, as vertical angles are equal.

Front

Identify the alternate interior angle to angle 6 if angle 5 is 70 degrees.

Back

The alternate interior angle to angle 6 is also 70 degrees.

Front

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

Back

The sum of the measures of two supplementary angles is always 180 degrees.

Front

If angle 3 is 40 degrees, what is the measure of angle 4 if they are alternate interior angles?

Back

Angle 4 is also 40 degrees, as alternate interior angles are equal.