Exploring Parallel Lines and Transversals

What is the defining characteristic of perpendicular lines?

• They never intersect.

• They intersect at 90-degree angles.

• They form acute angles.

• They are always parallel.

How can you identify parallel lines in a diagram?

• They intersect at right angles.

• They have arrowheads indicating they are parallel.

• They form a plus sign.

• They are always vertical.

What is a transversal?

• A line that is parallel to another line.

• A line that forms a right angle.

• A line that intersects two or more lines.

• A line that is perpendicular to another line.

What do we call the space between two parallel lines?

• Perpendicular

• Exterior

• Interior

• Transversal

Which angles are in the same position in different angle clumps?

• Alternate interior angles

• Same side interior angles

• Corresponding angles

• Vertical angles

What are alternate interior angles?

• Angles on the same side of the transversal and outside the parallel lines.

• Angles on the same side of the transversal and inside the parallel lines.

• Angles on opposite sides of the transversal and inside the parallel lines.

• Angles on opposite sides of the transversal and outside the parallel lines.

What are alternate exterior angles?

• Angles on the same side of the transversal and inside the parallel lines.

• Angles on opposite sides of the transversal and inside the parallel lines.

• Angles on opposite sides of the transversal and outside the parallel lines.

• Angles on the same side of the transversal and outside the parallel lines.

What are same side interior angles?

• Angles on the same side of the transversal and inside the parallel lines.

• Angles on opposite sides of the transversal and inside the parallel lines.

• Angles on the same side of the transversal and outside the parallel lines.

• Angles on opposite sides of the transversal and outside the parallel lines.

Which angles are formed by two intersecting lines and are opposite each other?

• Same side exterior angles

• Corresponding angles

• Alternate interior angles

• Vertical angles

What type of angles are angles 1 and 2 if they form a straight line?

• Complementary angles

• Linear pair

• Vertical angles

• Alternate exterior angles