11. Find the area of the surface obtained by rotating the circle x +y = 7about the line y = 7. a. 98, 2 b. 19672 c. 14712 d. 4972 e. 3437212. A group of engineers is building a parabolic satellite dish whose shape will be formed by rotating the curve ,1' = (\"'3 about the yaxis. If the dish is to have a 6-11 diameter and a maximum depth of 1 ft, nd the surface area of the dish. a. 31.22 a: b. 34.41r a? c. 1.53 a2 d. 11.88 a? e. 6?9.36 13:2