Question

. Find the volume of cylinder whose radius = 7 cm
and height = 3cm

Answer 1

Step-by-step explanation:

r=7cm

h=3cm

vol of cyl=πr sq h

22/7 into by 7 into 7 into

154 into 3

ans=462cm

Answer 2

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

$\green{\therefore{\text{Volume\:of\:cylinder=462\:cm}^{3}}}$

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

$\green{ \underline \bold{Given : }} \\ : \implies \text{Radius(r) = 7\: cm} \\ \\ : \implies \text{Height(h) = 3 \: cm} \\ \\ \red{ \underline \bold{To \: Find : }} \\ : \implies \text{Volume \: of \: cylinder = ? }$

• According to given question :

$\bold{As \: we \: know \: that} \\ : \implies \text{Volume\: of \: cylinder} =\pi{r}^{2}h \\ \\ : \implies \text{Volume\: of \: cylinder} = \frac{22}{7} \times {7}^{2}\times 3\\ \\ : \implies \text{Volume\: of \: cylinder} =22 \times 7\times 3 \\ \\ \green{ : \implies \text{Volume\: of \: cylinder} =462\: {cm}^{3}}\\\\\purple{\text{Some\:formula\:related\:to\:this\:topic}}\\ \pink{\circ\:\text{C.S.A\:of\:cylinder}=2\pi rh}\\\\ \pink{\circ\: \text{T.S.A\:of\:cylinder}=2\pi r(h+r)}$