Question

A rectangular sheet of metal is 40cm by 15cm. Equal squares of side 4cm are cut off at the corners and the remainder is folded up to form an open rectangular box. The volume of the box is?

Answer 1

after cutting its corner and formed
rectangular box
then length of box=40-8=32cm
width of box =15-8=7cm
height of box =4cm
now ,
volume of rectangular box=length x width x height =32 x 7 x 4 =896 cm^3

Answer 2

Length of the sheet = 40cm
After cutting, new length = 40-8 = 32cm

Breadth of the sheet = 15 cm
After cutting,new breadth = 15-8 = 7cm

Now volume = 32 x 7 x 4 = 896 cm^3