Slicing a Cylinder

Geometry Level pending

If a solid right cylinder with height 9 and radius 2 is cut as shown into three cylinders, each of equal radius and uniform height, how much "new" surface area is created?

4 π 4\pi 24 π 24\pi 36 π 36\pi 16 π 16\pi 12 π 12\pi

Hana Wehbi by Hana Wehbi , 51, USA

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1 solution

Hana Wehbi
Jul 14, 2017

The new surface area is only the area of the four circles that l marked which is 4 × 4 π = 16 π 4\times 4\pi= 16\pi

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