[tex] \huge \green{Answer}[/tex]
[tex] \: \tt → 94cm {}^{2} [/tex]
[tex] \bf \: Given : \\ \tt Length(l) = 5cm \\ \tt \: breadth(b) = 4cm \\ \tt \: height(h) = 3cm \\ \\ \bf \: Apply \: formula : \\ \bf \tt \: Surface \: \: area \: \: of \: \: a \: \: cuboid \: \\ \tt \: = >2(lb + bh + hl) \\ \\ \tt = > 2(5 \times 4 + 4 \times 3 + 3 \times 5) \\ \tt \: = > 2(47)cm \\ \\ \tt = > {94cm}^{2} [/tex]
