Question

A rectangular sheet of paper of dimensions 44 cm* 14 cm is rolled along its length and a cylinder is formed.Find ist surface area

Answer 1

here is your answer.......

Answer 2

Answer:

$924 cm^2$              

Step-by-step explanation:

We are given a rectangular sheet of paper of dimensions 44 cm* 14 cm is rolled along its length

So, height of formed cylinder = Length of rectangular sheet = 14 cm

Circumference of base of cylinder = Breadth = 44 cm

Circumference of circle = $2\pi r$

So, $2\times \frac{22}{7} \times r = 44$

$r = \frac{44\times 7}{2\times22}$

$r = 7$

Radius of cylinder is 7 cm

Height = 14 cm

Total surface area of cylinder = $2\pi r (h+r)$

                                                 = $2 \times \frac{22}{7} \times 7 (14+7)$                                                

                                                 = $924 cm^2$                      

Hence the total surface area of cylinder formed is  $924 cm^2$