A line that describes volume across the surface of an object or shape is called a ____ line.

Solution:

A line that describes volume across the surface of an object or shape is called a cross contour line.

These are lines that would reflect the eye's movements of what you see around.

These describes form and volume as compared to contour lines which describe edges only.

These lines would help in understanding a three dimensional form in a form of 2D.

The outline or contour lines create a border or path around the edge of a shape, thereby outlining and defining it.

Cross contour lines delineate differences in the features of a surface and can give the illusion of three dimensions or a sense of form or shading.

A line that describes volume across the surface of an object or shape is called a ____ line.

Summary:

A line that describes volume across the surface of an object or shape is called a cross contour line.