Share Undefined Terms and Defined Terms Review
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These are figures cannot be described by other figures.
Undefined terms
A kind of undefined terms that represents a location.
Point
It has no length, width nor thickness.
Point
A dot is used to represent this figure.
Point
It has a length, but no width and no thickness.
Line
It always extends indefinitely in two opposite directions.
Line
It is a flat surface that extends infinitely in all directions.
Plane
It has infinite width and infinite length, but no thickness.
Plane
These are explained using undefined terms and/or other defined terms
Defined Terms
It is part of a line with two endpoints
Line Segment
A part of a line, with one endpoint, that continues without an end in one direction
Ray
A figure formed by two rays with a common endpoint
Angle
A pencil is an example of what undefined terms?
Line
The light of a laser is an example of what defined terms
Ray
A towel is an example of what undefined terms?
Plane
