Male, grey hair, earring, grey top: If you've got a double decker, you've got to know the height and the width of it ... gardening involves measuring the length of lots of things.

The length of an object is the distance from one end to the other. Height measures how tall an object is. You can measure lengths or heights using centimetres and metres. The height of a plant ...

It is always in three dimensions. To find the volume of an objects like a cube or a box, measure the length × width × height. If measured in centimeters, the answer will be in cubic centimeters (cm³).

Like so many, it has increased in terms of width and length, by quite some margin, but the height has actually dropped, by ...