Question

Find the total surface area of a cuboid which is $6cm$ long, $7cm$ wide and $8cm$ high.

Answer 1

Find the total surface area of a cuboid

Given measures of the cuboid:

Length $\left(l\right)$ = $6cm$

Breadth $\left(b\right)$ = $7cm$

Height $\left(h\right)$ = $8cm$

Step 1: Find the total surface area of the cuboid

The total surface area of the cuboid $=2(lb+bh+hl)$

On substituting the values, we will get,

$$\begin{gathered} =2\left(6\right(7)+7(8)+8(6\left)\right) \\ =2(42+56+48) \\ =2\left(146\right) \\ =292c{m}^2 \end{gathered}$$

Hence, the total surface area of the cuboid is $292c{m}^2$.