Which pair of undefined terms is used to define a ray?

Asked by maham237 @ 17/12/2020 in Mathematics viewed by 464 People

Answered by maham237 @ 17/12/2020

A point and a line.

Further explanation

Ray is part of the line with one endpoint. Ray is an endless straight path in one direction from a starting point, e.g., $\boxed{ \ \overrightarrow{PQ} \ }$ .

The arrow above the point shows the direction of the longitudinal beam. The length of the ray cannot be calculated.

Undefined terms are basic figure that is not defined in terms of other figures. The undefined terms (or primitive terms) in geometry are a point, line, and plane.

These key terms cannot be mathematically defined using other known words.

A point represents a location and has no dimension (size). It is labeled with a capital letter and a dot.
A line is an infinite number of points extending in opposite directions that have only one dimension. It has one dimension. It is a straight path and no thickness.
A plane is a flat surface that contains many points and lines. A plane extends infinitely in all four directions. It is two-dimensional. Three noncollinear points determine a plane, as there is exactly one plane that can go through these points.

Learn more

Which points are coplanar and noncollinear? brainly.com/question/4165000
Definition of the line segment brainly.com/question/909890
What are three collinear points on a line? brainly.com/question/5795008

Keywords: which pair of undefined terms, to define a ray, point, line, plane, endpoint, one direction, the arrow

Which pair of undefined terms is used to define a ray?

Further explanation

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