Question

The surface area of a rectangular prism is found using the formula SA=2(lw+lh+wh), where l is length, w is width, and h is height. If the surface area of a rectangular prism is 324m^2, with length 5m and width 12m. What is the height, in meters? A. 60 B. 5 C. 6 D. -2

Answer 1

Sub in what you know from the info they give you, then solve for h:
324 = 2((5*12) + 5h + 12h)
324 = 2(60 + 17h)
Then distribute, get h by itself and solve.
that make sense?

Answer 2

so what is the answer? a,b,c,d..