The answer would be b ! explanation: the formula for sa *surface area * is 2×l×w+2×l×h+2×w×h so in this case l=4w=12h=8so you use the formula to solve it and it give you the answer of 352^cm^2
Answer from: Quest
d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two