The main distinction between rigid and flexible flat feet is that the former have an arch visible when the foot is not bearing weight (such as when sitting or standing on tiptoes) but collapse when standing, whereas the latter have no arch at all, regardless of whether weight is being placed on the foot.
The difference between a horse is about three feet.
320 yards is the same as 960 feet so the difference between this and 450 feet is 510 feet.
1700 feet
It is 1542 feet.
1100
-200
1 feet
"Foot" is singular, and "feet" is plural.
A fathom is 6 feet in length.
2.5 feet
15.5 feet.
The difference is three inches: 16 feet = 192 inches.