Transversal Angle Relationships

Front

What are transversal angles?

Back

Transversal angles are angles formed when a transversal line intersects two or more lines. They include corresponding angles, alternate interior angles, alternate exterior angles, and same-side interior angles.

Front

What are corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same position on two parallel lines cut by a transversal. They are equal in measure.

Front

What are alternate interior angles?

Back

Alternate interior angles are pairs of angles that lie between two parallel lines on opposite sides of the 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 on opposite sides of the transversal. They are equal in measure.

Front

What are same-side interior angles?

Back

Same-side interior angles are pairs of angles that lie between two parallel lines on the same side of the transversal. They are supplementary, meaning their measures add up to 180°.

Front

What is the relationship between vertical angles?

Back

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

Front

If m∠1 = 30°, what is m∠3 if ∠1 and ∠3 are corresponding angles?

Back

m∠3 = 30° (because corresponding angles are equal).

Front

If m∠1 = 30°, what is m∠2 if ∠1 and ∠2 are alternate interior angles?

Back

m∠2 = 30° (because alternate interior angles are equal).

Front

If m∠1 = 30°, what is m∠4 if ∠1 and ∠4 are vertical angles?

Back

m∠4 = 30° (because vertical angles are equal).

Front

If m∠1 = 30°, what is m∠5 if ∠1 and ∠5 are same-side interior angles?

Back

m∠5 = 150° (because same-side interior angles are supplementary).