The meter.
The appropriate unit is a metre.
Meters
12*sqrt(2) ----
THEY AARE IN the hallway and look in some lockers upstairs near the libary
Yes
The meter.
I would use meters.
21 feet
3 feet
Metres would probably be the most convenient.
The appropriate unit is a metre.
3 feet.
3 feet.
Please measure the length of this hallway.
40 feet/50 feet
A high school hallway is crowded.