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75684.6cm^2 SA=2B+pi x r^2 SA=2 x 54+ pi x 27^2 x 33 SA=108+2290.2 x 33 SA=108+75576.6 SA=75684.6cm^2
The surface area of a cylinder is the circumference times the height plus twice the area of the top. SA = 2πr2 + 2πrh SA = 2π(6)2 + 2π(6)(8) SA = 72π + 96π SA = 168π SA ≈ 527.52
Oh, dude, if you don't know the volume of the cylinder, you can't find the radius directly. You need at least one more piece of information like the height or surface area to calculate the radius. It's like trying to guess someone's age without any clues - good luck with that!
2πr2 + 2πrh = SA Where r is the radius of the end circle and h is the height of the cylinder. for an open cylinder just get rid of the 2πr2
SA = 2,884 units2