Question

The dimension of a cuboid are 7cm, 11cm & 13cm, The total surface area is ​

Answer 1

Answer:

$622 \: ᴄᴍ²$

Explanation:

ʟ=7ᴄᴍ, ʙ=11ᴄᴍ, ʜ=13ᴄᴍ

∴ T.S.A = 2(ʟʙ+ʙʜ+ʟʜ)

➻ 2[(7×11)+(11×13)+(7×13)]

➻2(77+143+91)

➻ 2×311

∴ ᴛ.s.ᴀ ➞ 622 ᴄᴍ²

Answer 2

Answer:

Given :

• ➨ Length of the cuboid = 7cm
• ➨ Breadth of the cuboid = 11cm
• ➨ Height of the cuboid = 13cm

$\begin{gathered} \end{gathered}$

To Find :

• ➨ The total surface area of a cuboid when the information is given there = ?

$\begin{gathered} \end{gathered}$

Explanation :

Now, here is the provided information about the length, Breadth and height of the cuboid. But, we have to find here the total surface area of the cuboid –

• ➻ Length of the cuboid = 7cm
• ➻ Breadth of the cuboid = 11cm
• ➻ Height of the cuboid = 13cm

So, we will apply an appropriate formula to find the solution for the provided question –

$\begin{gathered} \end{gathered}$

Formula Used :

$\large{\bigstar{\underline{\boxed{\sf{2(lb + bh + lh) }}}}}$

$\begin{gathered} \end{gathered}$

Solution :

Therefore, as per the provided formula we will substitute the value for finding the solution of this question –

⟹ 2(lb + bh + lh)

⟹ 2(7 × 11 + 11 × 13 + 7 × 13)

⟹ 2 × (77 + 143 + 91)

⟹ 2 × 311

⟹ 622 cm²

Hence, the total surface area of a cuboid with the provided information is given = 248 cm².

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