Transversals and Triangles (8.8D)

Front

What is a transversal?

Back

A transversal is a line that intersects two or more lines at different points.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in similar positions at each intersection where a transversal crosses two lines.

Front

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

Back

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

Front

What are alternate interior angles?

Back

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

Front

What are consecutive interior angles?

Back

Consecutive interior angles are pairs of angles that are on the same side of the transversal and inside the two lines.

Front

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

Back

If two parallel lines are cut by a transversal, the corresponding angles are equal.

Front

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

Back

If two parallel lines are cut by a transversal, the alternate interior angles are equal.

Front

If two lines are perpendicular to the same line, what can be said about those two lines?

Back

If two lines are perpendicular to the same line, they are parallel to each other.

Front

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

Back

The angles formed by a transversal and two parallel lines have specific relationships: corresponding angles are equal, alternate interior angles are equal, and consecutive interior angles are supplementary.

Front

Find the measure of angle x if m∠x + 50º = 180º.

Back

m∠x = 130º.