Points, Line Segments, Lines, Rays, and Planes

Point : A location in time and space with no size or dimension. It is represented by a dot.

Line : a series of points going on forever in both directions

Intersecting planes : These will intersect in exactly one line

Opposite rays : These have a common endpoint and form a line.

Acute Angle : angle less than 90 degrees

Obtuse Angle : angle greater than 90 degrees