Perspective, perhaps.
trompe l'oeil
In math, area is defined as the amount of space a geometrical object takes up on a two-dimensional plane. It is the measure of the surface of an object.
You need to find the area of each two dimensional surface on the figure. Do you have a specific figure in mind?
A face.
perspective and color
trompe l'oeil
trompe l'oeil
trompe l'oeil
Visual texture.
Trompe L'oeil, maybe, though it's not really related to the Math, Algebra, Geometry category.
The illusion of three-dimensional texture created on a two-dimensional surface, such as canvas or paper, is referred to as "trompe-l'œil." This artistic technique uses realistic imagery to create the optical illusion that depicted objects exist in three dimensions. Artists achieve this effect through careful manipulation of perspective, shading, and color. Trompe-l'œil is often used in murals and architectural decorations to enhance the visual depth of a space.
The term for the creation of the illusion of three-dimensional texture on a two dimensional surface is "visual texture." There are many ways of achieving visual texture, including relief, shading, and perspective.
trompe l'oeil
Visual texture
visual
It is called perspective.
Linear perspective is the term defined as the use of horizontal and diagonal lines to create the illusion of depth in a two-dimensional artwork. By converging lines to a vanishing point on the horizon, artists can achieve a sense of space and distance on a flat surface.