Respuesta :
yards, feet, or meters depending on the size of the room.small room you would use feet a medium sided room you would use yards , and a large room you would use meters.
Answer:
for measuring length of any object, place or any item it depends upon the size of the specimen which is to be measured.
If the specimen is small the measuring instrument or unit also decreases if the length to measure is high we measure with larger scale.
like when we measure a line in notebook we use centimeter unit but when we measure distance between two cities we use kilometer.
Classroom length can be measured in meters, yards , foot etc.