8.7.3 Lines

Definitions:

• • Perpendicular Lines --> Lines that intersect at 90 degrees (right angles)

  • Parallel Lines --> Two lines that never intersect or cross

  • Transversal --> A line that intersects two or more lines

  • Interior Angles --> Angles that lie inside of parallel lines

  • Exterior Angles --> Angles that lie outside of parallel lines

  • Alternate Interior Angles --> Interior angles that lie on opposite sides of the transversal

  • Alternate Exterior Angles --> Exterior angles that lie on the opposite sides of the transversal

  • Corresponding Angles --> Angles that are in the same position on the two lines in relation to the transversal