Question

A rectangular sheet of dimensions 44 cm x 7 cm is rolled about its longer side. Find the radius of the cylinder thus generated.​

Answer 1

Answer:

Only example

Step-by-step explanation:

When a rectangular sheet is rotated about its length, we get a cylinder

where the height of cylinder =7 cm

and the circumference of the base of the cylinder =25 cm

Thus curved surface area =2πrh

=(2πr)×h

=25×7

=175 cm

2