Question

Find the volume of the right circular cylinder which has the base radius of 21 m and height 14m.​

Answer 1

Step-by-step explanation:

volume=pie×radius×radius×hight

radius=21

hight = 14

voloum equal

21×21×14×pie=

6174pie sq cm

Answer 2

$\; \star \; {\underline{\boxed{\pmb{\orange{\frak{ \; Given \; :- }}}}}}$

➺ Radius = 21m

➺ Height = 14m

$\begin{gathered} \\ \\ \end{gathered}$

$\; \star \; {\underline{\boxed{\pmb{\red{\frak{ \; To \; Find \; :- }}}}}}$

➺ Volume = ?

$\begin{gathered} \\ \\ \qquad{\rule{200pt}{2pt}} \end{gathered}$

$\; \star \; {\underline{\boxed{\pmb{\purple{\frak{ \; SolutioN \; :- }}}}}}$

$❒ {\underline{\underline{\sf{ \; Formula \; Used \; :- }}}}$

${\; \longrightarrow \; {\underline{\boxed{\sf{ Volume \: = \pi \: r {}^{2} h}}}} \; \red\bigstar }$

$\begin{gathered} \\ \end{gathered}$

Here :

➸ h = height

➸ r = radius

$\begin{gathered} \\ \\ \end{gathered}$

$❒ {\underline{\underline{\sf{ \; Calculating \; the \; Volume\; :- }}}}$

$\begin{gathered} \; \longmapsto \; \sf { Volume \: of \: cylinder\: = \pi \: r {}^{2} h} \\ \\ \end{gathered}$

$\begin{gathered} \; \longmapsto \; \sf { Volume \: of \: cylinder\: = \frac{22}{7} \times 21{}^{2} \times 14} \\ \\ \end{gathered}$

$\begin{gathered} \; \longmapsto \; \sf { Volume \: of \: cylinder\: = \frac{22}{ \cancel{7}} \times 21{}^{2} \times \cancel{14}} \\ \\ \end{gathered}$

$\begin{gathered} \; \longmapsto \; \sf { Volume \: of \: cylinder\: = 22 \times 21 \times 21 \times 2} \\ \\ \end{gathered}$

$\begin{gathered} \; \longmapsto \; {\underline{\boxed{ \frak{\green{ Volume \: of \: cylinder = 19404m^2 }}}}} \; \bigstar \\ \\ \end{gathered}$

$\begin{gathered} \\ \\ \end{gathered}$

$\qquad \; \therefore$ The Volume of the cylinder is 19404m².

$\begin{gathered} \\ {\underline{\rule{300pt}{9pt}}} \end{gathered}$