Question

Find the surface area 12in 8in 5in​

Answer 1

`S = 392\ in^2`

Explanation:

Step 1: Determine important information

Using the given numbers it doesn't really matter which is which because the equation multiplies everything together.

Surface Area of a Rectangular Prism →
`S= 2(wl+hl+hw)`

Step 2: Plug in the values and solve

`S = 2((12\ in * 8\ in) + (5\ in * 8\ in) + (5\ in * 12\ in))`

`S=2(96\ in^2 + 40\ in^2 + 60\ in^2)`

`S = 2(196\ in^2)`

`S = 392\ in^2`

Answer:
`S = 392\ in^2`