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-A vanishing point is a point on the image plane of a perspective drawing where the two-dimensional perspective projections of mutually parallel lines in three-dimensional space appear to converge.
-orthogonality is the generalization of the notion of perpendicularity to the linear algebra of bilinear forms.
-in perspective, the imaginary plane corresponding to the surface of a picture, perpendicular to the viewer's line of sight.
Explanation:
Answer:
Sorry i dont understand this idiom anyone understsnd is ur keynoatd in other idiom?
They used materials such as rocks to write on the walls and there was this type of fabric that they could use that was sharp as a knife that they could also use to write little messages on the walls
