Please enable JavaScript.
Coggle requires JavaScript to display documents.
Lamar Alkahtani - Undefined Terms - Coggle Diagram
Lamar Alkahtani - Undefined Terms
Points
indicates a location (or position) in space
has no dimension (actual size)
has no length, no width, and no height (thickness)
usually named with a capital letter
A point, in geometry, can be defined as a dimensionless mark that represents a location in space
in the coordinate plane, a point is named by an ordered pair, (x,y).
a point has no size
Lines
it's length extends in one dimension
goes on forever in both directions
has infinite length, zero width, and zero height
assumed to be straight
drawn with arrowheads on both ends
named by a single lowercase script letter, or by any two (or more) points which lie on the line
Planes
Planes have 2 dimensions
forms a flat surface extending indefinitely in all directions
has infinite length, infinite width and zero height (thickness)
drawn as a four-sided figure resembling a tabletop or a parallelogram
named by a single letter (plane m) or by three coplanar, but non-collinear,* points (plane ABC)
Collinear points are points that lie on the same straight line
Coplanar points are points that line in the same plane
The lack of a definition of terms like point and line do not make them less important. They can be explained and visually represented