Respuesta :

Answer:

[tex]62in^2[/tex]

Step-by-step explanation:

Formula of total surface area of a prism:

[tex]2(lb+bh+lh)[/tex]

= 2[(7x3)+(1x3)+(1x7)]

= 2[21+3+7]

= 2 x 31

= [tex]62in^2[/tex]

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