Question

find the volume and the curved surface area of cylinder whose base radius is 14 centimetre and height is 18 centimetre

Answer 1

Radius = 14cm
Height = 18cm
Volume = πr^2h
= 22/7 X 14 X 14 X 18
= 11088cm^3
C.S.A = 2πrh
= 2 X 22/7 X 14 X 18
= 1584cm^2

Answer 2

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\therefore{\text{Volume\:of\:cylinder=11088\:cm}^{3}}}$

$\green{\therefore{\text{C.S.A\:of\:cylinder=1584\:cm}^{2}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\green{ \underline \bold{Given : }} \\ : \implies \text{Radius(r) = 14\: cm} \\ \\ : \implies \text{Height(h) = 18\: cm} \\ \\ \red{ \underline \bold{To \: Find : }}\\:\implies \text{Volume\:of\:cylinder=?}\\ \\: \implies \text{C.S.A \: of \: cylinder = ? }$

• According to given question :

$\bold{As \: we \: know \: that} \\ : \implies \text{Volume\: of \: cylinder} =\pi{r}^{2}h \\ \\ : \implies \text{Volume\: of \: cylinder} = \frac{ 22}{7} \times {14}^{2}\times 18\\ \\ : \implies \text{Volume\: of \: cylinder} =22\times 28\times 18\\ \\ \green{ : \implies \text{Volume\: of \: cylinder} =11088\: {cm}^{3}}\\\\\bold{As \: we \: know \: that} \\ : \implies \text{C.S.A\: of \: cylinder} =2\pi rh \\ \\ : \implies \text{C.S.A\: of \: cylinder} =2 \times \frac{ 22}{7} \times 14\times 18 \\ \\ : \implies \text{C.S.A\: of \: cylinder} =2 \times 22 \times 36 \\ \\ \green{ : \implies \text{C.S.A\: of \: cylinder} =1584\: {cm}^{2}}$