Question

a rectangular piece of paper 11 centimetre × 4 centimetre is folder without overlapping to make a cylinder of height 4 cm find the volume of the cylinder​

Answer 1

Step-by-step explanation:

length of the paper became the perimeter of the base of the cylinder and width becomes the height

let radius of the cylinder = r

height =h

perimeter of the base of the cylinder = 2πr =11

2×22×r=11

r = 7/4cm

Volume of the cylinder = πr^h

= 22/7×7/4×7/4×4

=38.5cm^3

Answer 2

Step-by-step explanation:

11=2pi r

11=2×22/7×r

11×7/2×22

=r=7/4

vol of cylinder =pi.r^2.h

=

22/7×7/4×7/4×4

=77/2

=38.5cm^3