Question

the curved surface area of cylinder is 1320 m square and the volume is 2640 cm cube find its height

Answer 1

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CSA = 1320 m²
Volm = 2640 cm³
=26.4m³

CSA=2πrh


$1320 = \frac{22}{7} \times 2{r} h$

$1320 \times \frac{7}{22} = 2{r}^{} h$

$\frac{660}{11} \times 7 = 2{r}^{} h$

$60 \times 7 = {2r}^{} h$

${r}^{} h = \frac{420}{2} = 210$

$r \: = \frac{210}{h}$

volm=26.4
πr²h=26.4


$26.4 \ = \: \frac{22}{7} \times { \frac{210}{ {h}^{2} } }^{2} \times h$

$26.4 \times \frac{7}{22} \times \frac{1}{{210}^{2} } = \: h$

$13.2 = \: \frac{1}{3} \times \frac{1}{22}$

$\frac{1}{66} \times 13.2 = h$
$h = 5$

Answer 2

CSA = 1320 m²
Volm = 2640 cm³
=26.4m³

CSA=2πrh
210/r = h ..
volume is. 2640 .
2640= 1/3 πr²h. .
r= 12. . so ..h= 210/12 = 12.5