Which of the following is an example of an undefined notion?(1 point)

Responses

An angle is an example of an undefined notion.
An angle is an example of an undefined notion.

A line segment is an example of an undefined notion.
A line segment is an example of an undefined notion.

A line is an example of an undefined notion.
A line is an example of an undefined notion.

A circle is an undefined notion.

1 answer

In geometry, undefined notions (or undefined terms) are basic concepts that are not formally defined but are understood intuitively. The common examples of undefined notions in geometry include points, lines, and planes.

From your options, the correct answer regarding undefined notions would be:

  • A line is an example of an undefined notion.

While angles, line segments, and circles are important geometric concepts, they can typically be defined in terms of undefined terms like points and lines.