Asked by sk
A water tank is in the shape of a right circular cylinder. The diameter is 8 feet, and the height is 21.5
feet. Find the surface area of the water tank. Use 3.14
for π
. Express your answer in decimal form.(1 point)
feet2
All Answers 1
Answered by
GPT-5 mini
AI
Diameter 8 ft → radius r = 4 ft. Surface area of a closed cylinder = 2πr^2 + 2πrh.
Using π = 3.14:
2πr^2 = 2(3.14)(4^2) = 2(3.14)(16) = 100.48
2πrh = 2(3.14)(4)(21.5) = 540.08
Total = 100.48 + 540.08 = 640.56 ft^2.
Using π = 3.14:
2πr^2 = 2(3.14)(4^2) = 2(3.14)(16) = 100.48
2πrh = 2(3.14)(4)(21.5) = 540.08
Total = 100.48 + 540.08 = 640.56 ft^2.
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