When comparing or combining an area or volume it is important to measure the objects using the same units. Without converting the areas into the same unit, it might be difficult to tell, for example, ...
A square centimetre is the area within a square with sides of length \({1~cm}\), as shown above. We say that it has an area of \({1~cm}^{2}\) (\({1~cm}\) squared). A cubic centimetre is the volume ...
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