A shoe box measures 15 in. By 7 in. By 41/2 in. What is the surface area of the box?

Surface area for a cuboid of length, l, bredth, b and height h.

= 2 * (lb + bh + lh)

for 15 by 7 by 4 1/2 = 15 by 7 by 4.5

Surface area = 2 * (15*7 + 15*4.5 + 7*4.5)

= 2 * (105 + 67.5 + 31.5)

=2 * (204) = 408

Surface area of box = 408 in²

Multiply them all together 15*7*4.5=472.5