POINTS, LINES, & RAYS
POINT A point is a location in space that has no length, width, or height. C READ: point C WRITE: C
LINE A line is a straight, continuous, and unending path made up of a collection of points. C D READ: line CD WRITE: CD
LINE SEGMENT A line segment is part of a line and has two endpoints. C D READ: line segment CD WRITE: CD
RAY A ray is part of a line made up of one endpoint and all the points on one side of it. C D READ: ray CD WRITE: CD
PLANE A plane is a flat surface made up of a continuous and unending collection of points. ·J ·L ·K READ: plane JKL WRITE: plane JKL
INTERSECTING LINES Intersecting lines have one point in common. B D READ: Line AB intersects line CD at point E.
PERPENDICULAR LINES Perpendicular lines intersect at right angles. W X T READ: Line RT is perpendicular to line WX. WRITE: RT WX.
PARALLEL LINES Parallel lines lie in the same plane but never intersect. P Q M N READ: Line MN is parallel to line PQ. WRITE: MNPQ.