I believe this is the definition of a mathematical point.
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Length Width Height
A point is a location in space. It has no length, breadth, width or a measure in any higher dimension. The space may contain one or more dimensions.
Non-intersecting lines in 3-D space may be parallel but need not be.
Edges: 5 cmDiagonal space: 8.66 cmSurface area: 150 cm2
1 dimension would just be lines in 1 dimension with no width or no length. You wouldn't be able to see it. Pictures on paper are in 2 dimensions. Models in space are in 3 dimensions.