Question

What is the surface area of a rectangular prism 8 inches wide 14 inches long and 2 inches deep

Answer 1

S.A. = 312 in²

Explanation:

The formula of a surface area of a rectangular prism:

`S.A.=2(lw+lh+wh)`

l - length

w - width

h - height

We have l = 14in, w = 8in and deep h = 2in. Substitute:

`S.A.=2\bigg((14)(8)+(14)(2)+(8)(2)\bigg)=2(112+28+16)=2(156)=312\ in^2`