Answer:
[tex]S.A=160cm^2[/tex]
Step-by-step explanation:
The surface area of a rectangular prism is given by the formula;
[tex]S.A=2(lw+lh+wh)[/tex]
From the diagram;
The length is [tex]l=10cm[/tex].
The width is [tex]w=5cm[/tex].
The height is [tex]h=2cm[/tex].
Substitute these values into the formula to obtain;
[tex]S.A=2(10\times5+10\times2+5\times2)[/tex]
[tex]S.A=2(50+20+10)[/tex]
[tex]S.A=2(80)[/tex]
[tex]S.A=160cm^2[/tex]
