trinafarrell2trina trinafarrell2trina
  • 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 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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