Parallel Lines Cut by a Transversal

How many lines does a transversal need to intersect?

• only one
• at least two
• more than four

Angles which add up to 180° are called _____.

• Supplementary Angles
• Corresponding Angles
• Vertical angles

Angles that have the same measurement.

• Supplementary Angles
• Corresponding Angles
• Vertical angles

Angles that are inside the parallel lines and on the opposite sides of a transversal.

• Alternate Interior Angle
• Alternate Exterior Angles
• Corresponding Angles
• Vertical Angles

Angles that are outside the parallel lines and on the opposite sides of a transversal.

• Alternate Interior Angle
• Alternate Exterior Angles
• Corresponding Angles
• Vertical Angles

Two angles that have the same relative position.

• Alternate Interior Angle
• Alternate Exterior Angles
• Corresponding Angles
• Vertical Angles

Angles that are across from each other and are formed by any intersecting lines.

• Alternate Interior Angle
• Alternate Exterior Angles
• Corresponding Angles
• Vertical Angles

∠2 & ∠4 are...

• Supplementary
• Congruent

∠1 & ∠4 are...

• Corresponding
• Vertical

∠2 & ∠6 are...

• Corresponding
• Vertical