Now, I’m not sure if I’m right because I’m not in college, but I’m pretty sure for solid A you divide the area which is 12 times the volume which is 4608. We do this because the volume of a cylinder is a•h but since we don’t know the height we divide. So after dividing I got 384. And since the solids are supposedly similar you will multiply the area of solid B which is 15 times 384 which equals 5,760. So the volume of solid B is 5,760 pi in.^3… (let’s hope this is correct)