Question

rectangular piece of paper is 22 cm long and 10 cm wide. A cylinder is formed by rolling the
paper along its length. Find the volume of the cylinder.

Answer 1

Answer:

See this and sorry for half photo

Answer 2

Answer:

Since,rectangular piece of paper of rolled along its length.

$\bold{ \therefore \: 2\pi \: r = 22}$

$\bold{r = 22 \times \frac{7}{2} \times 22 = 3.5}$

Height of cylinder (h)= 10cm

$\bold{ \therefore \: volume \: of \: cylinder \: = \pi \: {r}^{2} h}$

$\bold{ \implies \: \frac{22}{7} \times 3.5 \times 3.5 \times 10}$

$\bold{ \implies \: 385 {cm}^{3}}$