SOLUTION: [ I need to know the surface area (in square feet) of a cylinder 5 feet in diameter and 12 feet long ]

Question 825057: [ I need to know the surface area (in square feet) of a cylinder 5 feet in diameter and 12 feet long ]
Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
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each cap:
a = pi*r*r
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side:
A = 2*pi*r*h
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r = d/2
r = 5/2
r = 2.5 ft
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h = 12 ft
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total area:
2a + A
2*pi*r*r + 2*pi*r*h
2*pi*r*(r + h)
2*3.141592653589793*2.5*(2.5 + 12)
---
answer:
227.7655 sq.ft
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