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find the surface area of the open circular cylinder shown with the radius of 2 inch and...
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High School Teacher
The surface area of an open cylinder is `S=pi r^2+2pi r h` where r is the radius of the cylinder and h is the height.
To find the surface area in this case, sub in the numbers and simplify
`S=pi r^2+2 pi r h` sub in r=2, h = 5
`=pi 2^2+2pi (2)(5)` simplify
`=4pi+20 pi` collect like terms
The surface area of the cylinder is `24pi` square inches.
Posted by lfryerda on July 20, 2013 at 5:20 PM (Answer #1)
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