# CLASS-8INTRODUCTION OF VOLUME & SURFACE AREA OF CUBOID

VOLUME & SURFACE AREA OF CUBOIDS -

The volume of any solid figure will be considered as the space occupied by itself. Volume of a solid figure is three dimensional. Bricks, books, matchbox, toolbox, water/oil tank, etc. are the example of cuboid. The volume of cuboids is measured in cubic units. The common units of volume and the corresponding units of length are given in the following table –

UNIT OF LENGTH                 UNIT OF VOLUME

mm                             Cubic mm (mmᶟ)

cm                              Cubic cm (cmᶟ)

m                               Cubic m (mᶟ)

The liter (L) is a unit commonly used for measuring the capacity of vessels or the volume of the liquid.

1 L = 1 cubic decimeter (dmᶟ) = 1000 cmᶟ

1 mL = 1cmᶟ or 1cc

The surface area of a solid will be considered as the sum of the areas of a plane or curved faces of the solid. It is measured in square units, such as the square centimeter (cm²) and square meter ().