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question:

What is the surface area and volume of a pressure vessel in the form of a cylinder with each end in the form of a hemisphere, if the overall length is 12 meters and the diameter is 3 meters.

solution:

given:

radius = 1.5m

diameter = 3m

height or length = 12m

pi=3.14

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Total surface area of a cylinder = 2*pi*r*h + 2*pi*r^2

TSA = 2*3.14*1.5*12 + 2*3.14*1.5^2

= 113.04 m^2 + 14.13 m^2

= 127.17 m^2

Volume of a cylinder = pi* r^2*h

V= 3.14*1.5^2*12

= 84.8 m^3

Is this correct?

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# Surface area and volume of a cylinder

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