Question

a rectangular sheet of metal foil is 88 cm long and 20 cm wide. a cylinder is made out of it by rolling the foil along the length. find the volume of the cylinder​

Answer 1

Answer:

Given : l=88cm, b=20cm

Step-by-step explanation:

Length of Sheet = Circumference of base of cylinder = 88cm

∴ 2πr = 88

∴ r = 88/2π

    = 88x7/2x22

    = 2 x 7

   = 14 cm ---Radius of base of cylinder

width of sheet = height of cylinder (h) = 20 cm

Now

Volume of cylinder = πr²h

= 22/7 x 14² x 20

= 22 x 2 x 14 x 20

=12320 cubic cm