No they can be Collinear - Points that lie on the same line.
collinear plane
It's possible, but for any three lines in the same plane, there could be ether one point of intersection (unlikely) or three (more probably).
Noncoplanar lines cannot intersect because they exist in different planes and do not share a common point. However, they can be skew lines, which means they are neither parallel nor intersecting. In three-dimensional space, two lines are only able to intersect if they lie in the same plane. Therefore, it is geometrically impossible for two noncoplanar lines to intersect.
Yes, in Euclidean geometry, an infinite number of lines can meet at one point.
A triangle? Three lines that intersect in three points.
collinear plane
no
It's possible, but for any three lines in the same plane, there could be ether one point of intersection (unlikely) or three (more probably).
No, only three lines can intersect at a single point.
No. Any pair of the three will describe a plane, so the three possible pairs describe three planes.
its the point of concurrency
Noncoplanar lines cannot intersect because they exist in different planes and do not share a common point. However, they can be skew lines, which means they are neither parallel nor intersecting. In three-dimensional space, two lines are only able to intersect if they lie in the same plane. Therefore, it is geometrically impossible for two noncoplanar lines to intersect.
concurrent lines
concurrent
Three or more straight lines in a plane such that they intersect pairwise.
Yes, in Euclidean geometry, an infinite number of lines can meet at one point.
Any number of lines can intersect all at the same point. Think of a circle. Now think of all of its diameters.