Answer:
establish a horizon line and a vanishing point
Explanation:
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Artists establish a horizon line to create effective linear perspective, a vanishing point on that line, and multiple orthogonal, or vanishing, lines.
The horizon line is a horizontal line that runs across the paper or canvas to represent the viewer's eye level and delineate where the sky meets the ground.
Linear perspective is a technique used by artists to create the illusion of depth and space using relative size and position of a group of objects. To achieve this effect, there are three essential components needed in creating a painting or drawing using linear perspective.
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