Imperial units!

What is imperial units?

So what are imperial AND metric untis??

Imperial units: They are the old fashioned way of things like 1ft and 1mile ect they would or could all be converted into metric.

Metric units: They are a more new way of explaining grams ounce we occasionally use both but a few things are still in imperial units.

Here are a few that have been converted

1 sq foot (ft2) = 144 sq inches (in2)

1 sq yard (yd2) = 9 sq feet

1 acre = 4,840 sq yards

1 sq mile = 640 acres