1. By: Student #2

2. Four properties  Equidistant  Have same slope  Do no intersect  Lies on the same plane

3. Four Properties  Intersect  Form four 90 degree angles  Have opposite reciprocal slopes  Lies on the same plane

4.  Parallel Lines are two lines that are equidistant and never intersect. They have the same slope and they lie on the same plane.  The field has white lines that don’t intersect and are equidistant.  The two buildings between the river are parallel because they are the same distance apart and do not touch.  The lines on the window going only vertical are parallel as well as the two red lines on the floor.

5.  Perpendicular lines are two lines that intersect and form 90 degree angles. They lie in the same plane and have opposite reciprocal slopes.  All the picture in the previous slide have lines that are perpendicular because they intersect and form 90 degree angles.  The vertical and horizontal lines on the rubric cube and door form 90 degree angles.  The red line and silver line on the floor intersect as well as the silver lines on the steel plate.