Question

Which of the following is not an undefined term?

point
ray
line
plane

Answer 1

I think that it is point. A point is very precise

Answer 2

Answer: Ray

Explanation:

In geometry , The undefined terms are used to define other geometric terms.

There are only three undefined terms in geometry :-

1) point (No dimension)

2) line(One dimensional)

3) plane(Two dimensional)

A ray is a defined term which is defined as a part of line that has one endpoint.

Hence, the term that is not a undefined term = ray