MyQuestionIcon

12

You visited us 12 times! Enjoying our articles? Unlock Full Access!

Volume of a Cylinder

A rectangular...

Question

A rectangular is 5cm x 23cm is rotated completely about the 23cm side. Find the total surface area of the cylinder so formed.

Open in App

Solution

For the thus obtained cylinder,
r = 5 cm
l = 23 cm

Total surface area = 2(pi * r^2) + 2pir*l
= 157 + 722.2
= 879.2 cm^2

Suggest Corrections

thumbs-up

0

Similar questions

Q. Find the total area of

12

squares whose sides are

12 c m, 13 c m, . . ., 23 c m

A rectangular strip $25 c m \times 7 c m$ is rotated about the longer side. Find the total surface area of the solid thus generated.

Q. The length of the side of each square is given. Find its area.

(5) 23 cm

Q. A rectangular sheet of paper 44 cm

\times

18 cm is rolled along the length to form a cylinder. Assuming that the cylinder is solid (Completely filled), find its total surface area and the radius.

Q. Three identical cubes of side 5cm are joined end to end. Find the total surface area and lateral surface area f the resulting cuboid so formed.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Volume of Solids

MATHEMATICS

Watch in App

explore_more_icon

Explore more

Volume of a Cylinder

Standard IX Mathematics

Join BYJU'S Learning Program

CrossIcon