Parallel Lines Cut By A Transversal

• Transversal


  A line that intersects or cuts two or more lines
• Interior Angles


  • Angles between the two parallel lines when they are cut by a transversal
• Exterior Angles


  • Angles outside two parallel lines when they are cut by a transversal
• Corresponding Angles


  • Two angles on the same side of the transversal and on the same side of the parallel lines, having the same measure
• Alternate Interior Angles


  • Two angles between the two parallel lines and on opposite sides of the transversal, having the same measure
• Alternate Exterior Angles


  • Two angles outside the two parallel lines and on opposite sides of the transversal, having the same measure
• Consecutive Interior Angles


  • Two angles on the same side of the transversal in the interior of the parallel lines, which are supplementary
• Consecutive Exterior Angles


  • Two angles on the same side of the transversal in the exterior of the parallel lines, which are supplementary
• Consecutive Exterior Angles


  • Pairs marked with the same color
• Vertical Angles


  • Angles that are opposite each other when two straight lines intersect, having the same measure