Question

find the volume of a cylinder whose height is 3.5 and radius 4cm​

Answer 1

volume of cylinder =πr^2h

volume =3.14×4×4×3.5

volume=17.85cm^3

Answer 2

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

$\green{\therefore{\text{Volume\:of\:cylinder=176\:cm}^{3}}}$

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

$\green{ \underline \bold{Given : }} \\ : \implies \text{Radius(r) = 4\: cm} \\ \\ : \implies \text{Height(h) = 3.5 \: cm} \\ \\ \red{ \underline \bold{To \: Find : }} \\ : \implies \text{Volume \: of \: cylinder = ? }$

• According to given question :

$\bold{As \: we \: know \: that} \\ : \implies \text{Volume\: of \: cylinder} =\pi{r}^{2}h \\ \\ : \implies \text{Volume\: of \: cylinder} = \frac{22}{7} \times {4}^{2}\times 3.5\\ \\ : \implies \text{Volume\: of \: cylinder} =22 \times 16\times 0.5 \\ \\ \green{ : \implies \text{Volume\: of \: cylinder} =176 \: {cm}^{3}}\\\\\purple{\text{Some\:formula\:related\:to\:this\:topic}}\\ \pink{\circ\:\text{C.S.A\:of\:cylinder}=2\pi rh}\\\\ \pink{\circ\: \text{T.S.A\:of\:cylinder}=2\pi r(h+r)}$