Practice Work: 3.1 Pairs of Lines and Angles

Front

What are Alternate Exterior Angles?

Back

Alternate Exterior Angles are pairs of angles that lie outside a pair of parallel lines and on opposite sides of a transversal.

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.

Front

What are Perpendicular Lines?

Back

Perpendicular Lines are lines that intersect at a right angle (90 degrees).

Front

What are Skew Lines?

Back

Skew Lines are lines that do not intersect and are not parallel; they exist in different planes.

Front

What are Linear Pairs?

Back

Linear Pairs are two adjacent angles that form a straight line, summing up to 180 degrees.

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.

Front

What is the relationship between Corresponding Angles and Parallel Lines?

Back

If two parallel lines are cut by a transversal, then each pair of corresponding angles is equal.

Front

How can you identify Perpendicular Lines in a diagram?

Back

Perpendicular Lines can be identified by the presence of a right angle (90 degrees) symbol at the intersection.

Front

What is the definition of Consecutive Interior Angles?

Back

Consecutive Interior Angles are pairs of angles that lie between two parallel lines on the same side of a transversal.

Front

What is the significance of Vertical Angles?

Back

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