00:01
Okay, first let's just think about a square mile.
00:05
We have one mile on one side, one mile on the other side.
00:11
And we know that a kilometer, or our conversion between mile and kilometer, is 1 .609 kilometers fit in a mile.
00:26
So if we have one mile squared, then for our kilometers, it would be 1 .609 times 1 .609.
00:36
And we get 1 mile squared equals 2 .589.
00:46
And so with that information now, if we know we have 1 .2 people per 1 mile squared, if we want to convert this to kilometers, we know we'll want to put our miles squared at the top in order to cancel it out, which means we'll put our kilometer on the bottom.
01:16
And so our miles cancel out, and we get 1 .2 people for every 2 .589 kilometers squared.
01:26
But we don't want to leave it like that...