Is Arc Length a Word?

The distance along the arc (part of the circumference of a circle, or of any curve). ...

What is arc length?

Arc length is the distance between two points along a section of a curve. Determining the length of an irregular arc segment is also called rectification of a curve. The advent of infinitesimal calculus led to a general formula that provides closed-form solutions in some cases.

Is arc length and length the same?

An arc's length means the same commonsense thing length always means — you know, like the length of a piece of string (with an arc, of course, it'd be a curved piece of string). Make sure you don't mix up arc length with the measure of an arc which is the degree size of its central angle.