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What is the set of all points on a plane?
It is a surface with zero curvature. It is 2-dimensional and in those two dimensions it extends infinitely far.It is a surface with zero curvature. It is 2-dimensional and in those two dimensions it extends infinitely far.It is a surface with zero curvature. It is 2-dimensional and in those two dimensions it extends infinitely far.It is a surface with zero curvature. It is 2-dimensional and in those two dimensions it extends infinitely far.
What has two dimensions and extends in all directions?
a plane
A series of points that extends in two directions without end?
line
What is a set of points that extends without end in two directions called?
It is a line.
What has one dimension and extends without end in opposite directions?
This is a line. (It goes on forever both ways. It has one dimension because there is only one direction of motion on the line: forwards and backwards (you can't turn). Two dimensions allows for left and right, and three dimensions allows for up and down.)
