Answer:
1. Volume = length x width x height => cubic centimetres.
2. Perimeter = 2(length) + 2(width) => metres.
3. Speed = Distance /time => metres per second.
4. Area = length x width => square metres.
Explanation:
1. Volume = length x width x height
If the length, width and height are measured in centimetre (cm) , then, the unit of the volume will be:
Volume = cm x cm xcm = cm3 i.e cubic centimetres.
2. Perimeter = 2(length) + 2(width)
If the length and width are measured in meter (m), then, the unit of the perimeter will also be in metre (m).
3. Speed = Distance /time
If the unit of distance is measured in metre (m) and the time is measured in second (s), then , the unit of the speed will be:
Speed = Distance /time = m/s i.e metres per second.
4. Area = length x width
If the length and width are measured in metres (m), then, the unit of the area will be:
Area = m x m = m2 i.e square metres