Question

A rectangular sheet of paper 22cmX 13.2cm is rolled along its breadth then the radius of the cylinder so formed is

Answer 1

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Dimensions of the sheet of paper :

Length = 22cm

Breadth = 15cm

This sheet is rolled along its length,

so ,

the length will be the circumference and the breadth will become the height

Thus,

Height = 15cm

Circumference = 2πr

Let the radius be r

r = 7/2 cm

r = 3.5cm

Thus,

the radius is 3.5 cm

Answer 2

Answer:

${\rm{\pink{\underline{\underline{\huge{Answer}}}}}}$

Dimensions of the sheet of paper :

Length = 22cm

Breadth = 15cm

This sheet is rolled along its length,

so ,

the length will be the circumference and the breadth will become the height

Thus,

Height = 15cm

Circumference = 2πr

Let the radius be r

r = 7/2 cm

r = 3.5cm

Thus,

the radius is 3.5 cm