Rectangular Prism
Cuboid  surface Area and Volume
Cube Surface Area and Volume
 
The CuboidThe cuboid is also referred to as a rectangular prism. If your student does not understand why a cube, is also a prism I highly recomend you go to our explanation first. To be comfortable calculating volume and surface area, your child should be comfortable with multiplication as well as addition. Surface Area of Cuboid We also know that these six faces come in three pairs. Looking at the image to the left we can see the: area of the front face is b x h (bh) This is the same as the area of the back face so we multiply it by 2  2bh We can see the area of the side face is l x h (lh) This is the same as the other side of the cuboid so we multiply it by 2  2lh We can see the area of the bottom face is l x b (lb) This is the same as the top face, so we multiply it by 2  2lb The surface area is the area of all the shapes making the three dimensional shape, so we must add all these areas together: 2lh + 2lb + 2bhUnits Squared Volume of a Cuboid
The volume is: Length x Breadth x Height or to abbreviate it further: V = lbhUnits Cubed



Rectangular Prisms
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