Question

The side of a cube is 8cm then what
is the surface area
*​

Answer 1

$\underline{\underline{\huge{\gray{\tt{\textbf Answer :-}}}}}$

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$\sf\large\bold{\orange{\underline{\blue{ Given :-}}}}$

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• Side of the cube is 8 cm

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$\sf\large\bold{\orange{\underline{\blue{ To \: Find :-}}}}$

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• Surface area of the cube

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$\sf\large\bold{\orange{\underline{\blue{ Solution :-}}}}$

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We know that ,

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$\underline{\bold{\texttt{Total surface area of cube :}}}$

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6a² ⚊⚊⚊⚊ ⓵

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Where ,

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• a = Side of cube

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$\underline{\bold{\texttt{Total surface area of the given cube :}}}$

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Given that , Side of the cube is 8 cm

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• a = 8cm

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⟮ Putting a = 8 in ⓵ ⟯

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➜ 6a²

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➜ 6(8)²

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➜ 6(64)

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➨ 384 sq. cm.

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• Hence the total surface area of the cube is 384 sq. cm.

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Additional information

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Curved surface area of cube

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• 4a²

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Where ,

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➻ a = Side of cube

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Volume of cube

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• a³

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Where ,

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➻ a = Side of cube