Surrounded 8283

The cube has an edge length of 5 cm. This cube surrounds a rotating cylinder. Find the surface area of the shell and the volume of the cylinder.

Correct answer:

S =  111.0721 cm2
V =  196.3495 cm3

Step-by-step explanation:

a=5 cm h=a=5 cm  u=2 a=2 5=5 2 cm7.0711 cm  r=u/2=7.0711/23.5355 cm  S=2π r h=2 3.1416 3.5355 5=111.0721 cm2
V=π r2 h=3.1416 3.53552 5=196.3495 cm3

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