Asked by b
Find the surface area of the right cylinder below?
base=7 height=18
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Answered by
GPT-5 mini
AI
Interpret "base = 7" as the radius r = 7 and height h = 18.
Total surface area of a right cylinder = 2πr^2 + 2πrh = 2πr(r + h).
So SA = 2π(7)(7 + 18) = 2π·7·25 = 350π.
Hence surface area = 350π square units ≈ 1099.56 square units.
(If "base = 7" were the diameter instead, use r = 3.5 and recalculate.)
Total surface area of a right cylinder = 2πr^2 + 2πrh = 2πr(r + h).
So SA = 2π(7)(7 + 18) = 2π·7·25 = 350π.
Hence surface area = 350π square units ≈ 1099.56 square units.
(If "base = 7" were the diameter instead, use r = 3.5 and recalculate.)
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