SURFACE AREAS AND VOLUMES 209
First we would need a rectangular piece to cover
the bottom of the bundle. That would be as shown in
Fig. 13.2 (a)
Then we would need two long rectangular pieces
to cover the two side ends. Now, it would look like
Fig. 13.2 (b).
Now to cover the front and back ends, we would
need two more rectangular pieces of a different size.
With them, we would now have a figure as shown in
Fig. 13.2(c).
This figure, when opened out, would look like
Fig. 13.2 (d).
Finally, to cover the top of the bundle, we would
require another rectangular piece exactly like the one
at the bottom, which if we attach on the right side, it
would look like Fig. 13.2(e).
So we have used six rectangular pieces to cover
the complete outer surface of the cuboid.
Fig. 13.2