Question

a wooden box has external dimensions of 40 cm by 34 CM by 30 cm if the wood is 1 cm thick how many centimetre cube of the wood are there in it

Answer 1

$\sqrt{34048 =}$

Answer 2

l=40
b=34
h=30
volume of bigger cuboid=lbh
=40×34×30
=40800cm³
L=39
B=33
H=29
volume of smaller cuboid=LBH
=39×33×29
=37323cm³
centimetre cubes of wood required=40800-37323
=3477cm³