The length is the longest dimension of an object.
Length
See also
Arc Length, Bit Length, Curve Length, Distance, External Path Length, Height, Hook Length Formula, Internal Path Length, Module Length, Length Distribution Function, Number Length, Partial Order Length, Run-Length Encoding, WidthExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Length." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Length.html