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Q: How many planes can be formed with four non collinear points?
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How many planes can be determined if the point noncollinear?

The answer depends on the number of point. One point - as the question states - cannot be non-collinear. Any two points are always collinear. But three or more points will define a plane. If four points are non-coplanar, they will define four planes (as in a tetrahedron).


How many different rays can be formed from four collinear points?

Just one.


If four points are collinear they are also coplaner?

I dont think that "If four points are collinear they are also coplaner," is the same thing as "If four points are coplaner they are also collinear,". The definition of collinear is at least three points on the same line. To define a plane is to have threenoncollinear points.


How many plane are determined by four non collinear points?

exactly nine planes! * * * * * I would have said 4 - corresponding to the four faces of a tetrahedron. Of course, non-collinear does not mean non-coplanar so all four points could be in the same single plane!


Can four points be collinear?

Yes. On any straight line you can find an infinite set of 4 points which are collinear.


If four points are collinear they are also coplanar.?

Yes, they are.


If four points are collinear are they also coplanar.?

Yes, they are.


If four points are coplanar then they are also collinear?

not necassarily


Can three non collinear points make a circle?

yes, any three non collinear points will make a circle, however, four or more will not


Four points are always coplanar if?

all of them are collinear they lie in the same plane


Four points are always coplanar if they?

lie on the same plane and are collinear


Four points are alwats coplanar if they?

-lie in the same plane -are collinear