What the hell are you guys talking about...? 
Length, breath, hight, area, volume and time all exists weather
human exists or not because the universe exist. Its like saying a
falling tree doesn't make a sounds because no one heard it...
Even if humans doesn't exists, matter still exist... light still
exists... radio waves still exists...
Matter, light and radio waves are constantly in motion and if they
move from one point to another, that would already be a distance
travel. Even if human didn't exist to invent the calculation for
length, the fact is still that these matters had traveled that
distance. And length in what ever interpretation exist. The same
can be said with hight and breath because this is a 3 dimensional
world.
And time exist because nothing moves at an instance moment. Time is
simply a calculation between a one moment and the next moment in
which something has changed. Even though how minuscule it is.
Matter, Light and radio waves travel though distances is different
segments of moments. This segments of moments comes after each
other and not in the same segments this show the existence of time,
no matter how it is interpreted.
The only way that length, breath, height, area, volume and time to
not exist if nothing exist.