Two fixed points A & B on a surface are such that line joining A & B completely lies on surface, then surface is
a plane
a sphere
not neccesarily a plane
none of these
As we have learned
Plane -
If a line joining any two points on a surface completely lies on it then the surface is called plane.
-
For two particular points A & B line lies in surface it is not necessary that for every two points of surface, line will lie completely on surface
Option 1)
a plane
Option 2)
a sphere
Option 3)
not neccesarily a plane
Option 4)
none of these
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