Angle Relationships Level 1

Front

What are Corresponding Angles?

Back

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

Front

What are Vertical Angles?

Back

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

Front

What are Alternate Interior Angles?

Back

Alternate Interior Angles are pairs of angles that lie between two parallel lines and on opposite sides of a transversal. They are congruent when the lines are parallel.

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. They are congruent when the lines are parallel.

Front

What are Same Side Interior Angles?

Back

Same Side Interior Angles are pairs of angles that lie between two parallel lines and on the same side of a transversal. They are supplementary when the lines are parallel.

Front

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

Back

Corresponding Angles are equal.

Front

If two parallel lines are cut by a transversal, what can be said about the Alternate Interior Angles?

Back

Alternate Interior Angles are equal.

Front

If two parallel lines are cut by a transversal, what can be said about the Same Side Interior Angles?

Back

Same Side Interior Angles are supplementary (add up to 180 degrees).

Front

Back

Alternate Interior Angles.

Front

Back

Same Side Interior Angles.