The diagram shows a solid which is half of a cone. Calculate the total surface area of the solid. A. (48 + 48(pi)) cm² B. (42 + 15(pi)) cm² C. (24 + 30(pi)) cm² D. (24 + 15(pi)) cm²​

The diagram shows a solid which is half of a cone Calculate the total surface area of the solid A 48 48pi cm B 42 15pi cm C 24 30pi cm D 24 15pi cm class=