Question

the diameter of a cylinder is 14 cm and its curved surface area is 220 cm2. the volume of cylinder is

Answer 1

Hlo friend.. Cutiepie Here..

Here is ur answer :

Diameter d of cylinder = 14 cm

Radius r of cylinder = d / 2 = 14 /2 = 7 cm

Curved surface area of cylinder = 220 cm²

So, we have to find height

Let the height be h.

According to question.

$2\pi rh = 220$

$2 \times \frac{22}{7} \times 7 \times h = 220$

$h = \frac{220 \times 7}{22 \times 7}$

$h = 10 \: cm$


Height = 10 cm

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Volume of cylinder


$= \pi {r}^{2} h$


$= \frac{22}{7} \times 7 \times 7 \times 10$


$= 22 \times 7 \times 10$


$= 154 \times 10$

$= 1540 \: {cm}^{3}$

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HOPE IT HELPS YOU..

:-)

Answer 2

Answer:

diameter of the cylinder is 14 cm

its radius is equal to d/2=14/2= 7

now radius is equal to 7

given that c s a= 220

according to question

2pi*r*h=220

2*22/7*7*h=220

h= 220*7/22*7

h=10cm or 1000cm cube