Question

Find the volume of the cylinder whose radius is0.7and height = 1.4 cm
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Answer 1

Answer:

2.156cm cube

Step-by-step explanation:

Volume of cylinder=π r square h

= 22÷7* 0.7 * 0.7 * 1.4

=154* 14÷1000

=2.156 cm cube

Answer 2

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

$\green{\therefore{\text{Volume\:of\:cylinder=2.156\:cm}^{3}}}$

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

$\green{ \underline \bold{Given : }} \\ : \implies \text{Radius(r) = 0.7\: cm} \\ \\ : \implies \text{Height(h) = 1.4 \: cm} \\ \\ \red{ \underline \bold{To \: Find : }} \\ : \implies \text{Volume \: of \: cylinder = ? }$

• According to given question :

$\bold{As \: we \: know \: that} \\ : \implies \text{Volume\: of \: cylinder} =\pi{r}^{2}h \\ \\ : \implies \text{Volume\: of \: cylinder} = \frac{22}{7} \times {0.7}^{2}\times 1.4\\ \\ : \implies \text{Volume\: of \: cylinder} =22 \times 0.49\times 0.2 \\ \\ \green{ : \implies \text{Volume\: of \: cylinder} =2.156\: {cm}^{3}}\\\\\purple{\text{Some\:formula\:related\:to\:this\:topic}}\\ \pink{\circ\:\text{C.S.A\:of\:cylinder}=2\pi rh}\\\\ \pink{\circ\: \text{T.S.A\:of\:cylinder}=2\pi r(h+r)}$