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, ...

THE scope of this work is described on the title-page as follows:—“Forty-three graphic tables or diagrams for the conversion of measurements of different units, comprising conversions of length, area, ...

The area of a 2D shape is the amount of space inside it. Capacity measures the amount that a 3-dimensional (3D) object can hold. The standard units of capacity are litres (l) and millilitres (ml). A ...