from a rectangular sheet of tin, of size 100 cm by 80 cm, are cut four squares of side 10 cm from each corner. Find the area of the remaining sheet.

From a rectangular sheet of dimensions 30cm times 80cm , four equal squares of side x cm are removed at the corners, and the sides are then turned up so as to form an open rectangular box. Find the value of x so that the volume of the box is the greatest.

From a rectangular metal sheet of sides 25 cm and 20 cm, a circular sheet as large as possible is cut-off. What is the area of the remaining sheet?

A box,constructed from a rectangular metal sheet,is 21cm by 16cm by cutting equal squares of sides x from the corners of the sheet and then turning up the projected portions.The value of x os that volume of the box is maximum is (a)1(b) (c) 3(d) 4

A rectangular sheet of acrylic is 34 cm by 24 cm. From it, 64 circular buttons, each ofdiameter 3.5 cm, have been cut out. Find the area of the remaining sheet.

A rectangular acrylic sheet is 36 cm by 25 cm .From it, 56 circular buttons,each of diameter 3.5 cm have been cut out.Find the area of the remaining sheet.

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

An open top box constructed from a rectangular metal sheet 8cm times3cm by cutting equal squares of sides x from the corners of the sheet and then turning up the projected portions.The value of x so that the volume of the box is maximum is