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18-03-2015
Mathematics

Answered

This is about a prit stick;
the radius is 1.5cm
the height is 9cm
what is the surface area?
what is the volume?

Answer :

Hippalectryon Hippalectryon

18-03-2015

Surface of the cylinder : 2*(pi*radius^2)+(2*pi*radius*height)=2(pi*1.5^2)+(2*pi*1.5*9)=31.5pi cm^2 ~99 cm^2

Volume : pi*radius^2*height=pi*1.5^2*9=20.25pi~64 cm^3

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