The formula for the surface area of a cone is SA=(pi)(r^2)+(pi)(r)(l)
L is the slant height of the cone. Because pi is in the answer choices, there is no need to multiply either by pi so the new formula becomes SA=r^2+(r)(l) Now you just plug in what you know Sa=(8^2) + (8)(15) Sa=64+120 Sa=184(pi)
*dont forget to put the pi back in since you took it out in the beginning of the equation*
