It refers to how long an object is (from one end to the other, typically the longest dimension).

a thin lines that are long-short-short-long lines most often used to shown the travel or movement of an object or part in alternate position. It can also be used to show adjacent objects or features. Shows alternate positions of moving parts or repeated details.

It refers to How wide an object is.

it refers to side-to-side distance

It refers to how tall an object is

(the top-to-bottom distance).

It is used to determine gradations of the degrees when measuring arcs, angles and circles.

How deep an object is refers to _________________

            the front-to-back distance.

The method of drawing different views (front, top, side) of an object by projecting its features onto a flat surface.top, and

The different perspectives of the object, usually the front, top, and side views.