Question

Find The CSA of a cylindrical tank if the r= 2.1 and h= 4.5

Answer 1

Curved surface area of cylindrical tank is 59.4 unit².

Given :-

• Radius(r) of cylindrical tank is 2.1unit.
• Height(h) of cylindrical tank is 4.5 unit.

To Find :-

• The curved surface area of cylindrical tank.

Solution :-

${ \bold{ \longrightarrow{CSA _{cylindrical \: tank} = 2\pi \: rh }}}$

${ \bold{ \longrightarrow{CSA _{cylindrical \: tank} = 2 \times \frac{22}{7} \times 2.1 \times 4.5}}}$

${ \bold{ \longrightarrow{CSA _{cylindrical \: tank} = 2 \times \frac{22}{ \cancel7} \times \cancel{2.1 }\times 4.5 }}}$

${ \bold{ \longrightarrow{CSA _{cylindrical \: tank} = 2 \times 22 \times 0.3 \times 4.5}}}$

${ \bold{ \longrightarrow{CSA _{cylindrical \: tank} = 44 \times 1.35}}}$

${ \bold\red{ \longrightarrow{CSA _{cylindrical \: tank} = 59.4 \: unit {}^{2} .}}}$

Thus, the curved surface area of cylindrical tank is 59.4 unit².