Find the Area of the Surface Obtained by Rotating the Circle

question 63

Multiple Choice

Find the area of the surface obtained by rotating the circle $x ^ { 2 } + y ^ { 2 } = 7 ^ { 2 }$ about the line $y = 7$ .

• A) \(147 \pi ^ { 2 }\)
• B) \(49 \pi ^ { 2 }\)
• C) \(98 \pi ^ { 2 }\)
• D) \(343 \pi ^ { 2 }\)
• E) \(196 \pi ^ { 2 }\)

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