Question

I do I solve this for a surface area of a rectangular prism

Answer 1

320

Explanation:

The top and bottom parts have side lengths of 7 and 4

so 7*4= 28

and there are two of those so 28*2=56

two of the side pieces will have side lengths of 7 and 12

so 7*12=84

and there are two of those so 84*2= 168

and the last set of sides have side lengths of 4 and 12

so 4*12=48

and there are two of those so 48*2=96

now add them all up 56+168+96=320