This isn't just pixels, it's the normal way we use rectangular units in common speech: * A small city might be ten blocks by eight blocks, and we could also sa

This isn't just pixels, it's the normal way we use rectangular units in common speech: * A small city might be ten blocks by eight blocks, and we could also say the whole city is eighty blocks. * A room might by 13 tiles by 15 tiles, or 295 tiles total. * On graph paper you can draw a rectangle that's three squares by five squares, or 15 squares total.