Question

Orthogonal lines are _____________
a.
the point(s) to which all objects in a picture lead.
b.
the converging lines that lead to one or more vanishing points.
c.
where the viewer sees the landscape.
d.
the flat surfaces of a drawing, painting, or relief.

Answer 1

b. the converging lines that lead to one or more vanishing points.

Explanation: In linear perspective, orthogonals are the receding lines that converge toward vanishing point(s) on the horizon, creating the illusion of depth.