Question

Find the total surface area of a cuboid of its length, breadth and height are $7$ cm ,$5$cm, and $10$ cm respectively.

Answer 1

Total surface of cuboid is given by $S=2(lb+bh+lh)$ $\left\{\begin{array}{c}l=length\\ b=breadth\\ h=height\end{array}\right\}$

$S=2(30+50+70)$

$S=2\left(150\right)$

$=300c{m}^2$.