6
three feets
3
square feet (not feets) measure area, metres measure length. They are not comparable.
5.15 feets
there are 5,280 feet in a mile
5,280 feet in one mile.
They have one foot - which is very large.
1 yard are 3 feets
10x10=100 ft
157 centimeters is 5.15 feet.
one hundred squar feets
50 feet (not feets) equal 15.24 metres (not maters).