Question

find volume of the cylinder whose vertical height is 7cm and radius is 2 cm ?​

Answer 1

★Answer★

$\sf \color{green}\: Volume \: Of \: Cylinder \: = \pi \: r {}^{2} h \\ = \frac{22}{ \cancel7} \times 2 \times 2 \times \cancel 7 \\ = 22 \times 2 \times 2 \\ = 22 \times 4 \\ \green{= 88}$

More To Know :-

• Volume of Cuboid = l×b×h
• Volume of cube = l³

Answer 2

$\begin{gathered}\begin{gathered}\bf \:Given - \begin{cases} &\sf{Height_{(cylinder)} = 7 \: cm} \\ &\sf{Radius{(cylinder)} = 2 \: cm} \end{cases}\end{gathered}\end{gathered}$

$\begin{gathered}\begin{gathered}\bf \: To\:find - \begin{cases} &\sf{Volume_{(cylinder)}}  \end{cases}\end{gathered}\end{gathered}$

$\begin{gathered}\Large{\sf{{\underline{Formula \: Used - }}}}  \end{gathered}$

$\: \: \: \: \boxed{ \bf{ \: Volume_{(cylinder)} = \pi \: {r}^{2} h}}$

where,

• r = radius of cylinder

• h = height of cylinder

$\large\underline{\sf{Solution-}}$

Given,

• Height of the cylinder, h = 7 cm

• Radius of the cylinder, r = 2 cm

So,

• Volume of cylinder is given by

$\rm :\longmapsto\:Volume_{(cylinder)} = \pi \: {r}^{2} h$

$\rm :\longmapsto\:Volume_{(cylinder)} = \: \dfrac{22}{ \cancel7} \: \times \: {(2)}^{2} \: \times \: \cancel7$

$\rm :\longmapsto\:Volume_{(cylinder)} = 22 \: \times \: 4$

$\bf\implies \:Volume_{(cylinder)} \: = \: 88 \: {cm}^{3}$

Additional Information :-

$1. \: \: \: \: \: \: \: \boxed{ \sf{ \: Volume_{(cylinder)} = \pi \: {r}^{2} h}}$

$2. \: \: \: \: \: \: \: \boxed{ \sf{ \: Curved \: Surface \: Area_{(cylinder)} = 2\pi \: {r} h}}$

$3. \: \: \: \: \: \: \: \boxed{ \sf{ \: Total \: Surface \: Area_{(cylinder)} = 2 \: \pi \: {r} (h \: + \: r)}}$