Geo 3.1 - 3.2 Vocab for Angle Relationships

Front

What is a transversal?

Back

A transversal is a line that cuts across two or more lines.

Front

What are exterior angles?

Back

Exterior angles are angles that are on the outside of the lines cut by a transversal.

Front

If two parallel lines are cut by a transversal, what can be said about the corresponding angles?

Back

Corresponding angles are equal.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is 180 degrees.

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

Alternate interior angles are equal.

Front

If angle A and angle B are supplementary, what is the relationship between their measures?

Back

The measures of angle A and angle B add up to 180 degrees.

Front

What is the measure of each angle in an equilateral triangle?

Back

Each angle in an equilateral triangle measures 60 degrees.

Front

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

Back

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

Front

What is the definition of vertical angles?

Back

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

Front

How do you find the measure of an angle if you know the measure of its supplement?

Back

Subtract the measure of the supplement from 180 degrees.