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Surface area= 2πr(h+r)

h=2(2r)=4r     (Given)

2πr(4r+r)=160

2πr(5r)=160

10πr^2=160

πr^2=16

r^2=16/3.14=5.09

r=sqrt5.09=2.25cm

h=4r=4x2.25=9cm

v=πr^2h=3.14x2.25^2x9=143.06cm^3

by Level 6 User (24.5k points)

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