Question

a rectangular metal metallic sheet has dimensions 48 cm × 36 cm from each corner of a square of 8 cm is cut off an open box is made of remaining sheet find the volume of box

Answer 1

New l = 48 - (8×2) = 32cm
New b = 36 - (8×2) = 20cm
Height = side of square = 8cm

Volume of a cuboid = lbh
= 32×20×8
= 5120cm³

Answer 2

area of the rectangle=l×b sq .units

=48×36

=

$1728{cm}^{2}$

area of square = a×a sq.units

=8×8

=

${64cm}^{2}$

now, area of the remaining portion=

area of rectangle-4×area of square

=1728-4(64)

=1728-256

=

${1472cm}^{2}$

now volume of cube= a cube cu.units
=8 cube
=512cm cube

hope it helps you