A foot.
yards
The meter.
Inches and feet.
Square feet (length x width).
The metric unit of the meter would be the appropriate measure of the area of classroom. Calculating area involves multiplying the length (in meters) of the classroom's length and width. Area of the classroom would be in square (^2) meters.
metres would be the best way to work out the length of a classroom as centimetres are to small and kilometres are far to large
meeters?
Inches
Feet would probably be the most efficient way.
Feet and inches or metres and centimetres.
Probably feet of metres dependant on if you use metric or imperial.
No, a foot is not a metric measurement. Metric measurements of length would include millimeter, centimeter, meter, and kilometer.