Points, Lines, and Planes

The world is made of many things. Some can be touched, counted, or seen. There are other things that exist only in the imagination, but these imaginary things can be very powerful tools! You can see geometry everywhere around you, in manmade structures, in nature, in sports, in manufacturing, and in art. In geometry there are only four imaginary items—simple ideas—upon which everything else is built: point, line, plane, and space.

Read the explanation below to learn more about points, lines, and planes.

Points, Lines, and Planes