Question

what is the surface-area-to-volume ratio for a rectangular prism with edge lengths 6, 5, and 9?

Answer 1

Surface area = 2(6x5) + 2(6x9) + 2(5x9) = 258

Volume = 6x5x9 = 270

so surface area : volume = 258 : 270 = 43 : 45