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The surface area of this cylinder is given by the following formula.
S=2πrh+2πr2
The cylinder's surface area can be seen as three separate parts that are top, bottom, and side. The area of the side has the shape of a rectangle of width h. The top and the bottom are circles of radius r.
Since the top and the bottom are congruent circles, they have the same area.S=2πrh+2πr2