Find the total surface area of a cuboid given $l = 10 c m,$ $h = 4 c m$ and $w = 13 c m$ .

444 {c m}^{2}

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222 {c m}^{2}

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333 {c m}^{2}

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111 {c m}^{2}

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Solution

The correct option is A $444 {c m}^{2}$
$\begin{matrix} Area & = 2 (l w + w h + h l) = 2 (10 \times 13 + 13 \times 4 + 4 \times 10) = 2 (130 + 52 + 40) = 2 \times 222 = 444 c m^{2} \end{matrix}$

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