Question

44cm×22cm rectangular sheet of metal is folded and taped to make a cylinder of height 44cm .find the volume of cylinder so obtained.

Answer 1

firstly the breadth of sheet will be become circumference
so 2*22/7*r:22
r:3.5
v:2*22/7*3.5*3.5*44
v:1694cm3

Answer 2

Answer:

The volume of cylinder is 1694 cm³.

Step-by-step explanation:

The detentions of a rectangle is 44cm×22cm.

It is folded and taped to make a cylinder of height 44cm . It means the circumference of the base is equal to 22.

$2\pi r=22$

$2\times \frac{22}{7}\times r=22$

$times r=\frac{7}{2}=3.5$

Therefore the radius of the base is 3.5 cm.

The volume of a cylinder is

$V=\pr r^2h$

$V=\frac{22}{7}\times r^2\times 44=1694$

Therefore the volume of cylinder is 1694 cm³.