Final answer:
Linear perspective is a system used to create the illusion of a 3-D image on a 2-D surface. It involves parallel lines that recede into the horizon and appear to move closer until they touch. Orthogonal lines that converge at a vanishing point are used to portray depth and three-dimensionality.
Step-by-step explanation:
Linear perspective is a system used to create the illusion of a 3-D image on a 2-D surface. It involves a set of parallel lines that recede into the horizon and appear to move closer and closer until they touch. By using orthogonal lines that converge at a vanishing point, linear perspective can create the perception of depth and three-dimensionality in a painting or drawing.