In Geometry we have some items that do not have formal definitions but are concepts that are commonly understood and are then used in definitions of the rest of our terms.

Question

These are called undefined notions or undefined terms.

Which list includes the only undefined notions/terms in Geometry?

(1 point)
Responses

distance along a line, distance around a circular arc, angle, and arc
distance along a line, distance around a circular arc, angle, and arc

line segment, angle, point, and arc
line segment, angle, point, and arc

point, line, distance along a line, and distance around a circular arc
point, line, distance along a line, and distance around a circular arc

arc, parallel lines, perpendicular lines, and angle
arc, parallel lines, perpendicular lines, and angle

Answer 1

The correct answer is:

point, line, distance along a line, and distance around a circular arc

In Geometry, the commonly understood undefined notions are "point," "line," and sometimes "plane" (though not listed in the options). The other terms listed (such as distance along a line and distance around a circular arc) are also considered to be concepts that are used without formal definitions, as they are built upon the basic undefined notions.