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Yes- planes contain infinitely many points and every pair of points in plane determine a line in that plane, so every plane contains infinitely many lines.

Q: Does a plane contain at least three lines?

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A point is a single spot in space. A line is the connection between two points. A plane is the space made up between three or more lines. A plane has infinite lines and therefore infinite points.

An unequal triangle is a closed plane figure bounded by three straight lines such that the length of at least one of the lines is different from that of another.

If at least two of the three lines are parallel, the three lines will not form a triangle.

A three sided closed plane figure (shape) is a triangle.

yes, three points in the least number of points that can be used to define a plane. if you used two points you would only have a line, and one point is a point

Related questions

No, you could define a plane as comprising only two lines.

A point is a single spot in space. A line is the connection between two points. A plane is the space made up between three or more lines. A plane has infinite lines and therefore infinite points.

An unequal triangle is a closed plane figure bounded by three straight lines such that the length of at least one of the lines is different from that of another.

collinear plane

No. If they are parallel, then a plane exists which both lines lie in. Skew lines can not be on the same plane.

polygon

Only one plane can contain three specific points.

So long as all three lines are in the same plane, yes.

If at least two of the three lines are parallel, the three lines will not form a triangle.

A three sided closed plane figure (shape) is a triangle.

No. Any pair of the three will describe a plane, so the three possible pairs describe three planes.

It is a polygon