Angle Relationships Review Triangles and Transversals

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 are alternate interior angles?

Back

Alternate interior angles are pairs of angles that are on opposite sides of a transversal and inside the two lines.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are on the same side of the transversal and in corresponding positions.

Front

What are vertical angles?

Back

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

Front

If one angle measures 62 degrees, what is the measure of its corresponding angle?

Back

The corresponding angle also measures 62 degrees.

Front

If two angles are alternate exterior angles and one measures 80 degrees, what is the measure of the other?

Back

The other angle also measures 80 degrees.

Front

What is the relationship between the angles formed by a transversal cutting through two parallel lines?

Back

The angles formed have specific relationships: alternate interior angles are equal, corresponding angles are equal, and consecutive interior angles are supplementary.

Front

If angle m is 62 degrees, what is the measure of angle d if they are supplementary?

Back

Angle d measures 118 degrees (180 - 62 = 118).

Front

How do you find the measure of an unknown angle in a triangle if two angles are known?

Back

Subtract the sum of the known angles from 180 degrees.

Front

What is the measure of angle y if angle x is 100 degrees and they are vertical angles?

Back

Angle y also measures 100 degrees.