Answer:
62 ft^2
Explanation:
Surface area is given by the formula
SA = 2(lw+wh +lh) where l is length, w is width and h is height
l=5, w=2, h=3
Substituting what we know
SA = 2 (5*2 + 2*3+5*3)
=2(10+6+15)
=2(31)
=62 ft^2
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