A circle is the set of all points in a plane at a certain distance, its radius, from a certain point, its center.
Which of the following words in the definition is an undefined term used in geometry?
O point
radius
center
o distance


Answer :

Answer: distance

Step-by-step explanation:

The rest of the words have actual accompanying definitions in geometry.

Answer:
Option D. Distance
Explanation:
The other words from the options are defined in geometry.