false
You name it !No solid lies in a plane.
A 3-dimensional figure. It need not be solid since it could be a curve in 3-d space.A 3-dimensional figure. It need not be solid since it could be a curve in 3-d space.A 3-dimensional figure. It need not be solid since it could be a curve in 3-d space.A 3-dimensional figure. It need not be solid since it could be a curve in 3-d space.
Cartesian coordinate system
A two-dimensional figure, also called a plane or planar figure, is a set of line segments or sides and curve segments or arcs, all lying in a single plane. The sides and arcs are called the edges of the figure. The edges are one-dimensional, but they lie in the plane, which is two-dimensional. The triangle, the pentagon, the hexagon and the circle are just a few plane figures. Prisms and pyramids, for instance, are three-dimension figures.
A plane figure is one that is entirely in one plane. One way to think of that is it can be made to lie flat - no ups or downs. A closed figure is one where you can go around the outside of the figure and return to your starting point - without jumping. If you take any two points - one inside the figure and one outside, then you cannot draw a curve from one to the other without crossing the boundary of the figure.
Yes.
A two-dimensional figure, also called a plane or planar figure, is a set of line segments or sides and curve segments or arcs, all lying in a single plane. The sides and arcs are called the edges of the figure. The edges are one-dimensional, but they lie in the plane, which is two-dimensional. The triangle, the pentagon, the hexagon and the circle are just a few plane figures. Prisms and pyramids, for instance, are three-dimension figures.
they lie in the same plane
Skew lines cannot lie in the same plane.
Two lines can lie in one plane. For example, parallel lines are lines that intersect and lie in the same plane.
A straight line MUST lie in a plane. A curved line may or may not.
non-coplanar points are points that does not lie on the same plane... by:GRAETIA VILLANUEVA...