Question

The total surface area of a cube of 3cm ​

Answer 1

Answer:

54 cm sq.

Step-by-step explanation:

TSA of cube = 6(a)sq.

                     = 6*3*3

                     = 54 cm sq.

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Answer 2

$\huge{\underline{\underline{\bf{\red{Given\::}}}}}$

• $\sf{Side\:of\:cube\:=\:3\:cm}$

${ }$

$\huge{\underline{\underline{\bf{\red{Find\::}}}}}$

• $\sf{Total\:surface\:area}$

${ }$

$\huge{\underline{\underline{\bf{\red{Solution\::}}}}}$

• $\sf{\bold{\green{Total\:surface\:area\:of\:cube\:=\:6\:a}^{\green{2}}}}$

${ }$

$\:\:\:\:\:\:\:\::\:\Longrightarrow\sf\:{TSA\:=\:6\:\times\:(3)}^{3}$

$\:\:\:\:\:\:\:\::\:\Longrightarrow\sf\:{TSA\:=\:6\:\times\:9}$

$\:\:\:\:\:\:\:\::\:\Longrightarrow\sf\:{TSA\:of\:cube\:=\:54\:cm}^{2}$

${ }$

• ${\underline{\sf{Total\:Surface\:Area\:of\:cube\:is\:{\bold{54\:cm}^{\bold{2}}}}}}$