7 The dimension you provide is not a squared dimension but a linear dimension. There are no squared dimensions in a linear dimension. There are 7 linear yards in 21 linear feet, but no squared yards.
27000000
192ft squared
You cannot get 300cm into a meter. A meter is 100cm long. Therefore 300cm is equal to a meter.
As a cm squared has no depth, there are 0 cm squared in a cm cubed. Alternatively, it can be considered that a 2 dimension thing has an infinite third dimension, so there are infinitely many cm squared in a cm cubed. To put it another way, the question as asked is nonsense. cm squared are a measure of area - a thing that has only two dimensions, NO THIRD dimension cm cubed are a measure of volume - a thing that has THREE dimensions.
7 The dimension you provide is not a squared dimension but a linear dimension. There are no squared dimensions in a linear dimension. There are 7 linear yards in 21 linear feet, but no squared yards.
27000000
squared units of length.
The dimension for kinetic energy is the same as that for work, which is mass times distance squared divided by time squared (M*L^2/T^2). In SI units, the dimension for kinetic energy is joules (J).
12345 by 6789 ft squared
192ft squared
You cannot get 300cm into a meter. A meter is 100cm long. Therefore 300cm is equal to a meter.
4
1 inch by 1 inch.
That depends on what figure you are talking about.
Area is notated as Unit squared because you are only dealing with 2 dimension (Length and Width). Volume, however, is unit cubed because you are now involving height as a third dimension.
As a cm squared has no depth, there are 0 cm squared in a cm cubed. Alternatively, it can be considered that a 2 dimension thing has an infinite third dimension, so there are infinitely many cm squared in a cm cubed. To put it another way, the question as asked is nonsense. cm squared are a measure of area - a thing that has only two dimensions, NO THIRD dimension cm cubed are a measure of volume - a thing that has THREE dimensions.