Question

k guys im dishing out some questions help me with the ones you know pls. Which is a description of an undefined term?

The distance along a line segment is the number of units between two points.
Perpendicular lines are lines that intersect at a right angle.
A ray extends infinitely in one direction from an endpoint.
An angle is the figure formed by the intersection of two rays at a common endpoint.
2.Which mathematical term cannot be defined for all cases in a system of geometry?

parallel lines
midpoint of a line segment
distance along an arc
diameter of a circle
on a 50 min tim

Answer 1

50 min timer

Answer 2

33 min

Answer 3

30 min

Answer 4

10 min guessing after that ill badge