Question

Find the volume of a cylinder with radius of base = 0.2 and height = 1.4​

Answer 1

Answer:

Step-by-step explanation:

we know that the formula for finding the volume of the cylinder is 22/7*r^2*h

here 22/7 is the approximate value of pi which is an irrational number  and r is the radius, h is the height.

so,

=22/7*0.2*0.2*1.4 cc          (cc stands for cubic centimeter)

= 0.176cc

hence the volume of the cylinder is 0.176cc.

Answer 2

$\large\bf{\underline{\underline{\mathfrak{Question}:}}}$

Find the volume of a cylinder with radius of base = 0.2 and height = 1.4

$\large\bf{\underline{\underline{\mathfrak{Solution}:}}}$

Concept Used,

$\small{\boxed{\rm{Volume\:of\:cylinder=\pi\:r^2\:h}}}$

Given that,

$\small:{\Longrightarrow{\rm{Radius\:of\:cylinder=0.2}}}$

$\small:{\Longrightarrow{\rm{Height\:of\:cylinder=1.4}}}$

By putting the given values in the formula of volume of cylinder we get,

$\small:{\Longrightarrow{\rm{Volume\:of\:cylinder=\pi\:r^2\:h}}}$

$\small:{\Longrightarrow{\rm{\frac{22}{7}\:(0.2)^2\:1.4}}}$

$\small:{\Longrightarrow{\rm{\frac{22}{7}\:(0.2)(0.2)\:1.4}}}$

$\small:{\Longrightarrow{\rm{\frac{22}{\cancel7}\:(0.2)(0.2)\:\cancel{1.4}}}}$

$\small:{\Longrightarrow{\rm{\frac{22}{1}×(0.2)(0.2)×0.2}}}$

$\small:{\Longrightarrow{\rm{\frac{22}{1}×0.008}}}$

$\small:{\Longrightarrow{\rm{\frac{0.176}{1}\:m^2\:or\:0.176\:m^2}}}$

$\small{\therefore{\rm{0.176\:m^2\:is\:the\:volume\:of\:a\:cylinder.}}}$