Answer:
S(A) = 306 in²
Step-by-step explanation:
The surface area of a rectangular prism can be found using the following equation:
SA(rectangular prism) = 2(wl + hl + hw)
Note:
w = width = 6
h = height = 12
l = length = 4.5
Plug in the corresponding numbers to the corresponding variables:
SA(rectangular prism) = 2((6 * 4.5) + (12 * 4.5) + (12 * 6))
SA(rectangular prism) = 2((27) + (54) + (72))
SA(rectangular prism) = 2(27 + 54 + 72)
SA(rectangular prism) = 2(153)
SA(rectangular prism = 306
S(A) = 306 in²
