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The surface area of a cube of side is $27 cm$ is

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2916 {cm}^{2}

729 {cm}^{2}

4374 {cm}^{2}

19683 {cm}^{2}

answer is C.

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Detailed Solution

The side of cube is given,

a = 27 cm

.
The surface area of a cube of side

a

is given by,

S = 6 a^{2}

.
So, the total surface area of the given cube of side

a = 6 a^{2}

= 6 \times 27^{2} {cm}^{2}

= 4374 {cm}^{2}

Therefore, the surface area of a cube is

4374 {cm}^{2} .

Hence option (3) is correct.

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