One.exactly one
just one
A plane
Infinitely many planes contain any two given points- it takes three (non-collinear) points to determine a plane.
Three.
One.exactly one
1 line cause every plane contains atleast 3 or more noncollinear points
just one
3 non-collinear points define one plane.
Infinitely many planes may contain the same three collinear points if the planes all intersect at the same line.
Only one plane can pass through 3 non-collinear points.
A plane
Infinitely many planes contain any two given points- it takes three (non-collinear) points to determine a plane.
One.
Three.
Three.
The shape identified by three noncollinear points.