well if 6 is half of 12 im sure 60 is half of 120 so A
<span>y = 5pi/4 - 2x ... I hope it helps</span>
surface area is the area of all the faces on a shape so to speak.
2(120 x 110)=26,400
2(120 x 4)=960
2(110 x 4)=880
880+960+26,400=28,240
Surface area = 28,240
9/20 because 0.08 is 8/100