Question

A rectangular sheet of paper of length 28 cm and breadth 22 cm is rolled along its breadth to form a
cylinder. Find the volume of the cylinder.

Answer 1

Hi friend
--------------
Your answer
--------------------

Length of a rectangular sheet of paper = 28 cm

Breadth of the rectangular sheet of paper = 22 cm

The sheet is rolled along is breadth.

Then,
----------

Circumference of the base of the cylinder = The length of the rectangle

So,
-------

2 × π × r = 28

=> r = (28 × 7)/(2 × 22)

=> r = 4.45 cm

Now,
---------

Height of the cylinder = The breadth of the rectangle = 22 cm

Then,
-----------

Volume of the cylinder = π × r² × h

= (22/7 × 4.45 × 4.45 × 22) cm³

= 1369.20 cm³ (Approximately)

HOPE IT HELPS