Question

a rectangular sheet of paper 44cm *18cm is rolles along its length and a cylinder is frmed find the volume of cylinder

Answer 1

length of rectangular sheet l =44cm
breadth of the rectangular sheet b =18cm
it length is rolled along to form a cylinder. then, radius r of cylinder =circumference of the base of cylinder
44=2pir
r=44x7/2x22
r=7cm
height h of the cylinder =18cm
volume of cylinder V=pir^2h
V=22/7x7x7x18
V=22x7x18
V=2772cm^3