what is noncollinear because it was a point
Noncollinear points are points which are not all on a common line.
no
Only one plane can pass through 3 non-collinear points.
That figure is best described as a "triangle".
There is no specific name in general. If the line segments are straight, then it is a triangle.
yes. For example the corners of a square, or on the circumference of a circle.
No. For example, consider the vertices of a tetrahedron (triangle-based pyramid).
noncollinear
A plane
Since collinear is points that lie on the same line, and you need two points to form a line so those 2 points are collinear. So the opposite of that is noncollinear.
Three.
3
3
3 or more
Three.
The shape identified by three noncollinear points.
No. Any two points can be made to form a line.