unknown Terms yellowcomic.com Topical summary  Geometry summary  MathBits" Teacher sources Terms of Use contact Person: Donna Roberts
In geometry, formal definitions are created using other characterized words or terms. Over there are, however, 3 words in geometry that room not official defined. These words space point, line and plane, and also are referred to as the "three undefined terms of geometry".
You are watching: Which of the following is not an undefined term?
While this words space "undefined" in the official sense, we can still "describe" this words. The descriptions, stated below, refer to these words in relation to geometry.
POINT • a point indicates a place (or position) in space. • a allude has no dimension (actual size). • a allude has no length, no width, and also no elevation (thickness). • a point is usually called with a resources letter. • in the name: coordinates plane, a suggest is named by an bespeak pair, (x,y). when we represent a point with a dot, the dot can be really tiny or very large. Remember, a point has no size. The dimension of the dot drawn to stand for a allude makes no difference. Points have actually no size. They simply represent a location. LINE (straight line) • a line has no thickness. • a line"s size extends in one dimension. • a heat goes on forever in both directions. • a line has infinite length, zero width, and also zero height. • a line is presume to be straight. • a heat is drawn with arrowheads on both ends. • a line is called by a single lowercase script letter, or by any two (or more) points i m sorry lie on the line. Lines have the right to be labeled v a solitary script letter, or by two points top top the line, . The thickness of a line renders no difference. See more: Driving Distance From Orlando To Ft Lauderdale, Distance From Orlando To Fort Lauderdale PLANE • a plane has two dimensions. • a aircraft forms a flat surface prolonging indefinitely in all directions. • a plane has infinite length, infinite width and also zero elevation (thickness). • a aircraft is attracted as a foursided figure resembling a table or a parallelogram. • a plane is called by a solitary letter (plane m) or by three coplanar, however noncollinear,* points (plane ABC). airplane m or plane ABC. When the diagram of a aircraft has edges, you have to remember that the airplane actually has actually no boundaries. * upright points space points that lie ~ above the exact same straight line. Coplanar points are points the line in the very same plane.
