On many math test and quizzes it has been inches but normally they are made to fit inches in test so i would say it would be better to go with centimeters depending on what reason you need the units for.
Any metric unit would do. But it might be easier to pick something smaller than the length of the pencil, like a centimeter, or a millimeter.
Depends on how long the pencil is.
it is in the us customary unit or else we wouldnt be learning about. there for it is in the us customary unit.
It would be yards.
feet
what is the customary unit of length
2.5
The ounce.
Probably Centimeters
Inches.
Miles.Miles.Miles.Miles.
which is a better estimate for length of a pencil
A customary unit of length, which has 4 letters and starts with m, is mile.
Centimetre
Centimeters
The centimetre.
Centimeters