Home
Class 9
MATHS
The side of a paper of square shape is 4...

The side of a paper of square shape is 44 cm. It is folding and convert into a cylinder. Find the curved surface area and total surface of the cylinder.

Text Solution

Verified by Experts

The height of so formed cylinder 'h' = 44 cm
and `2pi r = 44`
`rArr 2xx(22)/(7)xx r=4`
`rArr r = 7 cm`
`therefore` Curved surface area of cylinder `= 2pi rh`
`=44xx44cm^(2)`
`= 1936 cm^(2)`
and total surface area of cylinder `= 2pi rh+2pi r^(2)`
`=1936+2xx(22)/(7)xx7xx7 cm^(2)`
`=1936+308cm^(2)`
`=2244cm^(2)`
Promotional Banner

Topper's Solved these Questions

  • SURFACE AREA AND VOLUME

    NAGEEN PRAKASHAN ENGLISH|Exercise Problems From NCERT/exemplar|24 Videos

  • SURFACE AREA AND VOLUME

    NAGEEN PRAKASHAN ENGLISH|Exercise Exercise 13a|30 Videos

  • STATISTICS

    NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise|12 Videos

  • TRIANGLES

    NAGEEN PRAKASHAN ENGLISH|Exercise Revision Exercise (long Answer Type Question)|8 Videos

Similar Questions

Explore conceptually related problems

25 circular plates, each of radius 10.5 cm and thickness 1.6 cm, are placed one above the other to form a solid circular cylinder. Find the curved surface area and the volume of the cylinder so formed.

The circumference of the base of a cylinder is 88cm and its height is 15cm. Find its curved surface area and total surface area.

The radius of base of a cylinder is 7 cm and height is 10 cm. Find its curved surface area and volume.

The radii of the ends of a frustum of a cone 45 cm high are 28 cm and 7 cm. Find its volume, the curved surface area and the total surface area.

The diameter of the base of a right circular cylinder is 42cm and its height is 10cm. Find the area of the curved surfaces and total surface area.

A solid is in the form of a cylinder with hemispherical ends. Total height of the solid is 19 cm and the diameter of the cylinder is 7 cm. Find the volume and total surface area of the solid.

The volume of a solid cylinder is 448\ pic m^3 and height 7cm. Find its lateral surface area and total surface area.

The volume of a solid cylinder is 448\ pic m^3 and height 7cm. Find its lateral surface area and total surface area.

Find (i) the curved surface area and (ii) the total surface area of a hemisphere of radius 21 cm.

The total surface area of a solid cylinder is 616 cm^(2) . If the ratio between its curved surface area and total surface area is 1:2, find the volume of the cylinder.