Question

if the radius of a cyclender is 4 cm and hight is 10 cm then the total surface area of cyclinder is​

Answer 1

Given :-

• radius of the cylinder = 4 cm
• height of the cylinder = 10 cm

To Find :-

• total surface area of the cylinder ?

Solution :-

we know that,

if the ‘r’ is the radius and ‘h’ is the height of the cylinder, then

$\boxed{ \bold{T.S.A \: of \: cylinder = 2\pi r(r + h)}}$

$\bold{: \implies2 \times \frac{22}{7} \times 4(4 + 10) } \\ \\ \bold{: \implies 2 \times \frac{22}{ \cancel7} \times 4 \times \cancel 14 } \: \: \: \: \: \\ \\ \bold{: \implies 2 \times 22 \times 4 \times 2} \: \: \: \: \: \: \: \: \: \\ \\ \bold{: \implies 352 \: {cm}^{2} } \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

hence, the total surface area of the cylinder is 352 cm²