Question

A cubical vessel contains 27 litre water . find the total surface area of the vessel.​

Answer 1

Answer:

$\bf\green{Let\:a\:be\:one\:side\:of\:the\:cubical\:vessel}$

$\bf\blue{ Then, }$

$\bf\blue{\implies a^{3}=27000 }$

$\bf\blue{\implies a=\sqrt[3]{27000} }$

$\bf\blue{\implies 30\:cm }$

$\bf\blue{Surface\:area\:of\:the\: cube= 6a^{2} }$

$\bf\blue{\implies 6 \times 30^{2} }$

$\bf\blue{\implies 5400 cm^{2} }$

Answer 2

Volume Of Cube= a³

a³= 27.

Therefore,a=3

T.S.A.of cube=6a²

=6×3²

6×9

=54

C.S.A.of cube=4a²

=4×3²

=4×9

=36