Question

Closed box is made of 2 cm thick wood with extemal dimension 84 cm $\times$ 75 cm $\times$ 64 cm. Find the volume of the wood required to make the box.

Answer 1

The volume of wood used $=$ External volume of the box $-$ Internal volume wood

$=(84\times 75\times 64)-(82\times 73\times 62)$ ......... Since the wood is $2$cm thick the internal dimensions will be reduced by $2$ cm

$=403200-371132$

$=32068c{m}^3$ of wood is required.