A rectangular sheet of paper 44cm x 18cm is rolled along its length and a cylinder is formed .find the volume oF the cylinder?
Answers
Answered by
1108
Let the radius be r
we know that the length of the sheet = circumference of the circle
and height of the cylinder = 18cm
44 = 2
r
2 * 22/7 r = 44
r = (44*7) / (22*2)
r = 7cm
volume of cylinder =
r2h
=22/7 * 7*7 * 18
= 2772 cm3
mark it breanliest pleeeeaseeeee.
we know that the length of the sheet = circumference of the circle
and height of the cylinder = 18cm
44 = 2
r
2 * 22/7 r = 44
r = (44*7) / (22*2)
r = 7cm
volume of cylinder =
r2h
=22/7 * 7*7 * 18
= 2772 cm3
mark it breanliest pleeeeaseeeee.
Answered by
589
length of the sheet = circumference of cylinder base
2*pi*r=44cm
2*22/7*r=44
r=(44*7)/(2*22)
r=7cm
therefore
cylinder radius=r=7cm
height of the cylinder=breadth of the rectangle
h=18cm
volume of the cylinder =pi*r^2*h
=22/7*7*7*18
=22*7*18
=2772cm^3
2*pi*r=44cm
2*22/7*r=44
r=(44*7)/(2*22)
r=7cm
therefore
cylinder radius=r=7cm
height of the cylinder=breadth of the rectangle
h=18cm
volume of the cylinder =pi*r^2*h
=22/7*7*7*18
=22*7*18
=2772cm^3
Similar questions