Question

when lenght is given in cubic metre square then how volume iscalculated?

if length is 20 cubic metre square ,breadth is 10 cubic metre and height is 5 cubicmetre, then what is volume?

Answer 1

There's confusion here about units. Length and width are each single dimensions like metres, feet, inches, etc. Cubic  measurements are volumes. So length is 20 metres, breadth or width is 10 metres and height is 5 metres. Multiplying them together gives volume in cubic metres=20*10*5=1000 cubic metres. This is the volume of a cuboid (that's a 3-dimensional equivalent of a rectangle).